PATENTS RELATED TO SUN SCREEN

Dr. Demchick has handled client patent matters related to sun screen.

Dr. Demchick is a scientist with a quarter of a century of research experience in academic, industrial and governmental settings.

If you are considering patent protection for an invention, Dr. Demchick will be glad to discuss the matter with you. There is no charge for an initial discussion.

The following sampling is to give you some sense of the types of sun screen related inventions which have received United States patent protection. The patent list is not exhaustive and is certainly not a substitute for a proper patent search . It should be noted that only U.S. Patents are included.

It should be noted that spelling, form and typographical errors in the original patents are preserved here.

Dibenzoylmethane sunscreen compositions photostabilized with amphiphilic block copolymers (United States Patent 7,153,494)

Sunscreen compositions and methods of use thereof (United States Patent 7,144,570)

Sunscreen (United States Patent 7,143,805)

Multiphase sunscreen compositions (United States Patent 7,135,165)

Sunscreen compositions (United States Patent 7,132,097)

Esters of aryl benzimidazole sulfonic acids and sunscreen compositions containing same (United States Patent 7,118,760)

Sunscreen compositions (United States Patent 7,108,860)

Sunscreen formulations containing waterborne polyurethane polymers (United States Patent 7,097,828)

Sunscreen compositions and methods of use thereof (United States Patent 7,078,022)

Sunscreen composition and a process for preparing it (United States Patent 7,056,496)

In vitro prediction of sunscreen PFA values (United States Patent 7,033,577)

Non-pilling UV-photoprotecting sunscreen compositions (United States Patent 7,022,316)

Sunscreen composition (United States Patent 7,014,842)

Sunscreen compositions and methods of use (United States Patent 7,001,592)

Photostabilizers, UV absorbers, and methods of photostabilizing a sunscreen composition (United States Patent 6,962,692)

Photostable cationic organic sunscreen compounds and compositions obtained therefrom (United States Patent 6,936,735)

Sunscreen composition (United States Patent 6,936,241)

Photostabilizers, UV absorbers, and methods of photostabilizing a sunscreen composition (United States Patent 6,926,887)

Photostabilizers, UV absorbers, and methods of photostabilizing a sunscreen composition (United States Patent 6,919,473)

Sunscreen milk (United States Patent 6,919,071)

Sunscreen compositions (United States Patent 6,916,464)

Photostabilization of a sunscreen composition with a combination of an .alpha.-cyano-.beta., .beta.-diphenylacrylate compound and a dialkyl naphithalate (United States Patent 6,899,866)

Sunscreen formulations containing nucleic acids (United States Patent 6,890,912)

Photostabilization of a sunscreen composition with low levels of an .alpha.-cyano-.beta., .beta.-diphenylacrylate (United States Patent 6,890,521)

Water-soluble polyaminoamides comprising 1,3-diimines as sunscreen agents (United States Patent 6,887,400)

Sunscreen formulations (United States Patent 6,858,200)

Sunscreen compositions comprising mineral oxides having hydrophobic coatings and glycoside-substituted polydimethylsiloxanes (United States Patent 6,846,479)

Photo stable organic sunscreen compounds with antioxidant properties and compositions obtained therefrom (United States Patent 6,831,191)

Sunscreen compositions (United States Patent 6,830,746)

Photostabilizers, UV absorbers, and methods of photostabilizing a sunscreen composition (United States Patent 6,800,274)

Plant-based non-toxic sunscreen products (United States Patent 6,783,754)

Methods of making and selling a sunscreen composition (United States Patent 6,770,270)

Cosmetic sunscreen preparation (United States Patent 6,749,838)

Sunscreen for animals (United States Patent 6,743,416)

Synergistically UV-photoprotecting sunscreen compositions comprising camphorsulfonic acid/benzophenone compounds (United States Patent 6,703,002)

Photostable cationic organic sunscreen compounds with antioxidant properties and compositions obtained therefrom (United States Patent 6,699,463)

UV-photostabilized sunscreen compositions comprising dibenzoylmethane/benzophenone compounds (United States Patent 6,699,461)

UV-photostabilized sunscreen compositions comprising dibenzoylmethane/triazine/benzophenone compounds (United States Patent 6,699,460)

Variable sunscreen for a vehicle (United States Patent 6,698,816)

Sunscreen composition (United States Patent 6,696,048)

Synergistically UV-photoprotecting mixed sunscreen compositions (United States Patent 6,627,179)

Dispenser for cosmetics containing sunscreen (United States Patent 6,623,198)

Dibenzoylmethane sunscreen compositions containing photostabilizing amounts of tri-substituted butane compounds (United States Patent 6,616,919)

Method for improving UV radiation stability of photosensitive sunscreen filters (United States Patent 6,607,713)

Photo stable organic sunscreen compounds with antioxidant properties and compositions obtained therefrom (United States Patent 6,602,515)

Personal wash sunscreen compositions which deposit and lather well (United States Patent 6,576,228)

Sunscreen compositions (United States Patent 6,540,986)

Sunscreen compositions and methods and materials for producing the same (United States Patent 6,537,529)

Car window and sunscreen assembly (United States Patent 6,523,880)

Sunscreen emulsion composition and method of use (United States Patent 6,517,816)

Sunscreen agents, photoprotective cosmetic compositions containing them and uses thereof (United States Patent 6,517,742)

Aromatic dimethicone copolyol polymers as sunscreen agents in personal care applications (United States Patent 6,500,414)

Cosmetic composition with organic sunscreen and porous powder particles (United States Patent 6,495,123)

Use of sunscreen combinations which comprise, as essential constituent, 2-(4-alkoxyanilinomethylene) malonic dialkyl esters as photostable UV filters in cosmetic and pharmaceutical preparations (United States Patent 6,488,915)

Sunscreen compositions and methods and materials for producing the same (United States Patent 6,485,713)

Sunscreen composition containing sol-gel microcapsules (United States Patent 6,468,509)

Sunscreen composition (United States Patent 6,464,965)

Use of sunscreen combinations comprising, as essential constituent, 2,2'-p-phenylenebis (3,1-benzoxazin-4-one) as photostable UV filters in cosmetic and pharmaceutical preparations (United States Patent 6,458,342)

Sunscreen compositions containing a dibenzoylmethane derivative (United States Patent 6,444,195)

Photostable sunscreen compositions and methods of stabilizing (United States Patent 6,440,402)

Enhanced SPF sunscreen (sprayable) formulations comprising interpolymers of PVP/dimethiconylacrylate/polycarbamyl/polyglycol ester (United States Patent 6,436,377)

Method for obtaining photostable sunscreen compositions (United States Patent 6,436,375)

Benzylidenecamphor-substituted silanes/organosiloxanes for use in photostabilizing sunscreen compositions comprising dibenzoylmethane compounds (United States Patent 6,429,326)

Liquid sunscreen compositions which both deposit and lather well (United States Patent 6,399,045)

Sunscreen lotion or spray composition (United States Patent 6,395,269)

Use of sunscreen combinations comprising, as essential constituent, 4,4'-diarylbutadienes as photostable UV filters in cosmetic and pharmaceutical preparations (United States Patent 6,391,289)

Composition containing at least one bicyclic aromatic compound and at least one lipophilic sunscreen, and uses thereof (United States Patent 6,391,287)

Use of sunscreen combinations comprising, as essential constituent, amino-substituted hydroxybenzophenones as photostable UV filters in cosmetic and pharmaceutical preparations (United States Patent 6,387,355)

Biphenyl compounds substituted by camphor or hydantoin derivatives as sunscreen compositions (United States Patent 6,384,284)

UV-photoprotecting sunscreen compositions comprising immixture of polyethylene/carboxylated polyethylene polymers (United States Patent 6,372,200)

Photochromic tanning and sunscreen lotion (United States Patent 6,361,763)

STABLE SUNSCREEN COMPOSITION CONTAINING DIBENZOYLMETHANE DERIVATIVE, E.G., PARSOL 1789, AND C12, C16, C18 BRANCHED CHAIN HYDROXYBENZOATE AND/OR C12, C16 BRANCHED CHAIN BENZOATE STABILIZERS/SOLUBILIZERS (United States Patent 6,350,894)

Aromatic dimethicone copolyol polymers as sunscreen agents (United States Patent 6,346,595)

Photostabilized sunscreen compositions comprising dibenzoylmethane compounds and benzylidenecamphor-substituted silanes/organosiloxanes (United States Patent 6,312,673)

Sunscreen compositions containing copolymers of isoprene butadiene and/or styrene to provide improved water resistance (United States Patent 6,312,672)

Sunscreen composition (United States Patent 6,309,626)

Mixed n-butyl and iso-propyl phthalamide compounds as sunscreen solubilizers (United States Patent 6,306,373)

Sunscreen compositions (United States Patent 6,290,938)

Sunscreen with disappearing color indicator (United States Patent 6,290,936)

Water resistant sunscreen and insect repellent composition (United States Patent 6,284,227)

Photoresponsive sunscreen compositions (United States Patent 6,280,711)

Delivery systems for active ingredients including sunscreen actives and methods of making same (United States Patent 6,280,710)

Sunscreen composition (United States Patent 6,267,949)

Microcapsules made of chitin or of chitin derivatives containing a hydrophobic substance, in particular a sunscreen, and process for the preparation of such microcapsules (United States Patent 6,242,099)

Sunscreen composition containing sol-gel microcapsules (United States Patent 6,238,650)

Liquid sunscreen compositions which both deposit and lather well (United States Patent 6,224,852)

Stable sunscreen composition containing a barium compound, e.g., barium sulfate, a dibenzoylmethane derivative, e.g., butyl methoxydibenzoylmethane (avobenzone), and a methoxycinnamate derivative, e.g., octyl methoxycinnamate (United States Patent 6,210,658)

Photostabilized sunscreen compositions comprising dibenzoylmethane compounds (United States Patent 6,200,552)

Wet appliable, instant protection sunscreen and makeup and method of use (United States Patent 6,197,281)

Sunscreen for the scalp hair and hair (United States Patent 6,190,645)

Sprayable sunscreen compositions (United States Patent 6,165,450)

Methods and compositions for improving sun protection from sunscreen formulations (United States Patent 6,165,449)

Water resistant sunscreen and insect repellent composition (United States Patent 6,159,452)

Low pH sunscreen compositions (United States Patent 6,153,176)

Disappearing color sunscreen compositions (United States Patent 6,146,618)

Sunscreen composition and method of producing same (United States Patent 6,136,299)

Apparatus and method for measuring the effectiveness of a sunscreen composition (United States Patent 6,130,435)

Dibenzoylmethane sunscreen compositions photostabilized with amphiphilic block copolymers (United States Patent 7,153,494)

Sunscreen compositions and methods of use thereof (United States Patent 7,144,570)

Sunscreen (United States Patent 7,143,805)

Multiphase sunscreen compositions (United States Patent 7,135,165)

Sunscreen compositions (United States Patent 7,132,097)

Esters of aryl benzimidazole sulfonic acids and sunscreen compositions containing same (United States Patent 7,118,760)

Sunscreen compositions (United States Patent 7,108,860)

Sunscreen formulations containing waterborne polyurethane polymers (United States Patent 7,097,828)

Sunscreen compositions and methods of use thereof (United States Patent 7,078,022)

Sunscreen composition and a process for preparing it (United States Patent 7,056,496)

In vitro prediction of sunscreen PFA values (United States Patent 7,033,577)

Non-pilling UV-photoprotecting sunscreen compositions (United States Patent 7,022,316)

Sunscreen composition (United States Patent 7,014,842)

Sunscreen compositions and methods of use (United States Patent 7,001,592)

Photostabilizers, UV absorbers, and methods of photostabilizing a sunscreen composition (United States Patent 6,962,692)

Photostable cationic organic sunscreen compounds and compositions obtained therefrom (United States Patent 6,936,735)

Sunscreen composition (United States Patent 6,936,241)

Photostabilizers, UV absorbers, and methods of photostabilizing a sunscreen composition (United States Patent 6,926,887)

Photostabilizers, UV absorbers, and methods of photostabilizing a sunscreen composition (United States Patent 6,919,473)

Sunscreen milk (United States Patent 6,919,071)

Sunscreen compositions (United States Patent 6,916,464)

Photostabilization of a sunscreen composition with a combination of an .alpha.-cyano-.beta., .beta.-diphenylacrylate compound and a dialkyl naphithalate (United States Patent 6,899,866)

Sunscreen formulations containing nucleic acids (United States Patent 6,890,912)

Photostabilization of a sunscreen composition with low levels of an .alpha.-cyano-.beta., .beta.-diphenylacrylate (United States Patent 6,890,521)

Water-soluble polyaminoamides comprising 1,3-diimines as sunscreen agents (United States Patent 6,887,400)

Sunscreen formulations (United States Patent 6,858,200)

Sunscreen compositions comprising mineral oxides having hydrophobic coatings and glycoside-substituted polydimethylsiloxanes (United States Patent 6,846,479)

Photo stable organic sunscreen compounds with antioxidant properties and compositions obtained therefrom (United States Patent 6,831,191)

Sunscreen compositions (United States Patent 6,830,746)

Photostabilizers, UV absorbers, and methods of photostabilizing a sunscreen composition (United States Patent 6,800,274)

Plant-based non-toxic sunscreen products (United States Patent 6,783,754)

Methods of making and selling a sunscreen composition (United States Patent 6,770,270)

Cosmetic sunscreen preparation (United States Patent 6,749,838)

Sunscreen for animals (United States Patent 6,743,416)

Synergistically UV-photoprotecting sunscreen compositions comprising camphorsulfonic acid/benzophenone compounds (United States Patent 6,703,002)

Photostable cationic organic sunscreen compounds with antioxidant properties and compositions obtained therefrom (United States Patent 6,699,463)

UV-photostabilized sunscreen compositions comprising dibenzoylmethane/benzophenone compounds (United States Patent 6,699,461)

UV-photostabilized sunscreen compositions comprising dibenzoylmethane/triazine/benzophenone compounds (United States Patent 6,699,460)

Variable sunscreen for a vehicle (United States Patent 6,698,816)

Sunscreen composition (United States Patent 6,696,048)

Synergistically UV-photoprotecting mixed sunscreen compositions (United States Patent 6,627,179)

Dispenser for cosmetics containing sunscreen (United States Patent 6,623,198)

Dibenzoylmethane sunscreen compositions containing photostabilizing amounts of tri-substituted butane compounds (United States Patent 6,616,919)

Method for improving UV radiation stability of photosensitive sunscreen filters (United States Patent 6,607,713)

Photo stable organic sunscreen compounds with antioxidant properties and compositions obtained therefrom (United States Patent 6,602,515)

Personal wash sunscreen compositions which deposit and lather well (United States Patent 6,576,228)

Sunscreen compositions (United States Patent 6,540,986)

Sunscreen compositions and methods and materials for producing the same (United States Patent 6,537,529)

Car window and sunscreen assembly (United States Patent 6,523,880)

Sunscreen emulsion composition and method of use (United States Patent 6,517,816)

Sunscreen agents, photoprotective cosmetic compositions containing them and uses thereof (United States Patent 6,517,742)

Aromatic dimethicone copolyol polymers as sunscreen agents in personal care applications (United States Patent 6,500,414)

Cosmetic composition with organic sunscreen and porous powder particles (United States Patent 6,495,123)

Use of sunscreen combinations which comprise, as essential constituent, 2-(4-alkoxyanilinomethylene) malonic dialkyl esters as photostable UV filters in cosmetic and pharmaceutical preparations (United States Patent 6,488,915)

Sunscreen compositions and methods and materials for producing the same (United States Patent 6,485,713)

Sunscreen composition containing sol-gel microcapsules (United States Patent 6,468,509)

Sunscreen composition (United States Patent 6,464,965)

Use of sunscreen combinations comprising, as essential constituent, 2,2'-p-phenylenebis (3,1-benzoxazin-4-one) as photostable UV filters in cosmetic and pharmaceutical preparations (United States Patent 6,458,342)

Sunscreen compositions containing a dibenzoylmethane derivative (United States Patent 6,444,195)

Photostable sunscreen compositions and methods of stabilizing (United States Patent 6,440,402)

Enhanced SPF sunscreen (sprayable) formulations comprising interpolymers of PVP/dimethiconylacrylate/polycarbamyl/polyglycol ester (United States Patent 6,436,377)

Method for obtaining photostable sunscreen compositions (United States Patent 6,436,375)

Benzylidenecamphor-substituted silanes/organosiloxanes for use in photostabilizing sunscreen compositions comprising dibenzoylmethane compounds (United States Patent 6,429,326)

Liquid sunscreen compositions which both deposit and lather well (United States Patent 6,399,045)

Sunscreen lotion or spray composition (United States Patent 6,395,269)

Use of sunscreen combinations comprising, as essential constituent, 4,4'-diarylbutadienes as photostable UV filters in cosmetic and pharmaceutical preparations (United States Patent 6,391,289)

Composition containing at least one bicyclic aromatic compound and at least one lipophilic sunscreen, and uses thereof (United States Patent 6,391,287)

Use of sunscreen combinations comprising, as essential constituent, amino-substituted hydroxybenzophenones as photostable UV filters in cosmetic and pharmaceutical preparations (United States Patent 6,387,355)

Biphenyl compounds substituted by camphor or hydantoin derivatives as sunscreen compositions (United States Patent 6,384,284)

UV-photoprotecting sunscreen compositions comprising immixture of polyethylene/carboxylated polyethylene polymers (United States Patent 6,372,200)

Photochromic tanning and sunscreen lotion (United States Patent 6,361,763)

STABLE SUNSCREEN COMPOSITION CONTAINING DIBENZOYLMETHANE DERIVATIVE, E.G., PARSOL 1789, AND C12, C16, C18 BRANCHED CHAIN HYDROXYBENZOATE AND/OR C12, C16 BRANCHED CHAIN BENZOATE STABILIZERS/SOLUBILIZERS (United States Patent 6,350,894)

Aromatic dimethicone copolyol polymers as sunscreen agents (United States Patent 6,346,595)

Photostabilized sunscreen compositions comprising dibenzoylmethane compounds and benzylidenecamphor-substituted silanes/organosiloxanes (United States Patent 6,312,673)

Sunscreen compositions containing copolymers of isoprene butadiene and/or styrene to provide improved water resistance (United States Patent 6,312,672)

Sunscreen composition (United States Patent 6,309,626)

Mixed n-butyl and iso-propyl phthalamide compounds as sunscreen solubilizers (United States Patent 6,306,373)

Sunscreen compositions (United States Patent 6,290,938)

Sunscreen with disappearing color indicator (United States Patent 6,290,936)

Water resistant sunscreen and insect repellent composition (United States Patent 6,284,227)

Photoresponsive sunscreen compositions (United States Patent 6,280,711)

Delivery systems for active ingredients including sunscreen actives and methods of making same (United States Patent 6,280,710)

Sunscreen composition (United States Patent 6,267,949)

Microcapsules made of chitin or of chitin derivatives containing a hydrophobic substance, in particular a sunscreen, and process for the preparation of such microcapsules (United States Patent 6,242,099)

Sunscreen composition containing sol-gel microcapsules (United States Patent 6,238,650)

Liquid sunscreen compositions which both deposit and lather well (United States Patent 6,224,852)

Stable sunscreen composition containing a barium compound, e.g., barium sulfate, a dibenzoylmethane derivative, e.g., butyl methoxydibenzoylmethane (avobenzone), and a methoxycinnamate derivative, e.g., octyl methoxycinnamate (United States Patent 6,210,658)

Photostabilized sunscreen compositions comprising dibenzoylmethane compounds (United States Patent 6,200,552)

Wet appliable, instant protection sunscreen and makeup and method of use (United States Patent 6,197,281)

Sunscreen for the scalp hair and hair (United States Patent 6,190,645)

Sprayable sunscreen compositions (United States Patent 6,165,450)

Methods and compositions for improving sun protection from sunscreen formulations (United States Patent 6,165,449)

Water resistant sunscreen and insect repellent composition (United States Patent 6,159,452)

Low pH sunscreen compositions (United States Patent 6,153,176)

Disappearing color sunscreen compositions (United States Patent 6,146,618)

Sunscreen composition and method of producing same (United States Patent 6,136,299)

Apparatus and method for measuring the effectiveness of a sunscreen composition (United States Patent 6,130,435)

Dibenzoylmethane sunscreen compositions photostabilized with amphiphilic block copolymers (United States Patent 7,153,494)

Sunscreen compositions and methods of use thereof (United States Patent 7,144,570)

Sunscreen (United States Patent 7,143,805)

Multiphase sunscreen compositions (United States Patent 7,135,165)

Sunscreen compositions (United States Patent 7,132,097)

Esters of aryl benzimidazole sulfonic acids and sunscreen compositions containing same (United States Patent 7,118,760)

Although his recognition as a registered patent agent permits him to represent others in all patent matters before the United States Patent and Trademark Office, Dr. Demchick limits his practice to patent matters involving inventions for which he is confident that his expertise will allow him to serve his client well. He will gladly discuss whether he is comfortable handling cases involving inventions in a particular field. He will err on the side of declining cases if he has uncertainty about his ability to do what is needed in the case. Dr. Demchick does not represent clients in court. However, he refers clients to a patent attorney who does represent others in court, if it appears likely that patent related representation in court is appropriate. Dr. Demchick prepares and files non-provisional (regular) patent applications and provisional patent applications. He prepares and files utility patent applications and design patent applications. He prepares and files U.S. patent applications and international patent applications under the Patent Cooperation Treaty (PCT). He prepares and files applications to enter the U.S. National Phase for inventions for which international patent applications (PCT) were already filed. One of the matters he discusses with each client or potential client is which type of application(s) best meets that client's needs. He usually does a patent search (patentability search) as part of the preparation of a patent application. He discusses the value of patent searching with each inventor before agreeing to prepare a patent application for that inventor.