PATENTS RELATED TO BIODEGRADATION

Although Dr. Demchick also represents patent seekers with non-microbiological inventions, his doctorate is in microbiology. Microbiology has been the primary focus of his research and teaching. He especially loves dealing with patent searches and applications for involving microbiology.

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 biodegradation 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.

Biodegradable aliphatic-aromatic copolyester films (United States Patent 7,153,569)

Biodegradable aliphatic polyester grafted with poly(ethylene glycol) having reactive groups and preparation method thereof (United States Patent 7,151,142)

Biodegradable material based on polymer and cereal flour, method for making same and uses (United States Patent 7,148,272)

Production of biodegradable thermoplastic materials from organic wastes (United States Patent 7,141,400)

Biodegradable compounds including poly(lactic acid) polymer compositions and products (United States Patent 7,138,439)

Method for preparing biodegradable polyester and itself prepared thereby (United States Patent 7,138,179)

Adhesive based on biodegradable acrylates (United States Patent 7,135,591)

Resilient biodegradable packaging materials (United States Patent 7,135,063)

Biodegradable composition having improved water resistance and process for producing same (United States Patent 7,132,463)

Biodegradable and biocompatible polymeric microspheres encapsulating Salmonella enteritidis bacteria (United States Patent 7,132,108)

Method for preparing a biodegradable copolyester (United States Patent 7,129,301)

Fiber article comprising a biodegradable plastic (United States Patent 7,129,190)

Expandable biodegradable polymeric stents for combined mechanical support and pharmacological or radiation therapy (United States Patent 7,128,755)

Releasable polymeric conjugates based on aliphatic biodegradable linkers (United States Patent 7,122,189)

Biodegradable corrosion inhibitor composition (United States Patent 7,118,615)

Biodegradable glucosaminemuramyl peptides for apoptosis modulation (United States Patent 7,112,564)

Production of a composite material having a biodegradable plastic substrate and at least one coating (United States Patent 7,109,070)

Biodegradable polymer (United States Patent 7,094,817)

Biodegradable common bile duct stent and the method for preparing thereof (United States Patent 7,094,260)

One-time use composite tool formed of fibers and a biodegradable resin (United States Patent 7,093,664)

Releasable polymeric conjugates based on aliphatic biodegradable linkers (United States Patent 7,087,229)

Biodegradable or compostable containers (United States Patent 7,083,673)

Biodegradable chelant compositions for fracturing fluid (United States Patent 7,078,370)

Biodegradable starch resin and method for making same (United States Patent 7,071,249)

Biodegradable lubricating composition and uses thereof, in particular in a bore fluid (United States Patent 7,071,150)

Non-synthetic biodegradable starch-based composition for production of shaped bodies (United States Patent 7,067,651)

Ternary mixtures of biodegradable polyesters and products manufactured from them (United States Patent 7,067,596)

Process of preparation of biodegradable films from semi refined kappa carrageenan (United States Patent 7,067,568)

Biodegradable microparticles that stabilize and control the release of proteins (United States Patent 7,060,299)

Biodegradable functional fluid for mechanical drives (United States Patent 7,060,199)

Fibers formed of a biodegradable polymer and having a low friction surface (United States Patent 7,056,580)

Grafted biodegradable polymer blend compositions (United States Patent 7,053,151)

Method to accelerate biodegradation of aliphatic-aromatic co-polyesters by enzymatic treatment (United States Patent 7,053,130)

Capillary membrane stabilization and reduction of tissue injury through use of IV biodegradable macromolecules with antioxidants and/or other chemicals (United States Patent 7,041,655)

Use of biodegradable microspheres that release an anticancer agent for treating gliobastoma (United States Patent 7,041,241)

Methods of making functional biodegradable polymers (United States Patent 7,037,983)

Biodegradable polymer compositions methods for making same and articles therefrom (United States Patent 7,037,959)

Drug releasing biodegradable fiber for delivery of therapeutics (United States Patent 7,033,603)

Biodegradable sediment barrier (United States Patent 7,029,208)

Biodegradable, thermoplastic molding materials (United States Patent 7,015,269)

Biodegradable stent (United States Patent 7,011,678)

Biodegradable ether dry cleaning solvent (United States Patent 7,008,458)

Biodegradable polycation composition for delivery of an anionic macromolecule (United States Patent 7,001,891)

Microbial biodegradation of phosphonates (United States Patent 7,001,758)

Biodegradable poly(.beta.-amino esters) and uses thereof (United States Patent 6,998,115)

Biodegradable polylactide resin composition (United States Patent 6,987,138)

Biodegradable bag (United States Patent 6,984,426)

Biodegradable elastomer and method of preparing same (United States Patent 6,984,393)

Method of making biodegradable non-polluting product (United States Patent 6,979,417)

Device for delivering non-biodegradable bulking composition to a urological site (United States Patent 6,979,317)

Compositions and methods for biodegradable microspheres as carriers of bioactive substances (United States Patent 6,962,716)

Biodegradable bag (United States Patent 6,960,374)

Biodegradable bicomponent fibers with improved thermal-dimensional stability (United States Patent 6,953,622)

Stable and biodegradable foamed cement slurries, additives and methods (United States Patent 6,953,505)

Cementing subterranean zones using cement compositions containing biodegradable dispersants (United States Patent 6,953,090)

Tumor selective and biodegradable polyphosphazene-platinum(II) conjugate antitumor agent, and preparation method thereof (United States Patent 6,951,953)

Device for plugging an opening such as in a wall of a hollow or tubular organ including biodegradable elements (United States Patent 6,949,116)

Fibers comprising starch and biodegradable polymers (United States Patent 6,946,506)

Medical materials and porous scaffolds for tissue engineering made from the biodegradable glycolide/.epsilon.-caprolactone copolymer (United States Patent 6,946,143)

Concentrated, preferably biodegradable, quaternary ammonium fabric softener compositions containing cationic polymers and process for preparation (United States Patent 6,939,844)

Biodegradable tissue retractor (United States Patent 6,936,005)

Composition of crosslinkable prepolymers for biodegradable implants (United States Patent 6,933,328)

Disposable and biodegradable paper cup (United States Patent 6,926,197)

Multiblock biodegradable hydrogels for drug delivery and tissue treatment (United States Patent 6,923,986)

Liquid composition of biodegradable block copolymer for drug delivery system and process for the preparation thereof (United States Patent 6,916,788)

Transparent pipe trap with means of enhancing the biodegradation of sink effluents (United States Patent 6,915,814)

Biodegradable polyester polymer and method for preparing the same using compressed gas (United States Patent 6,913,826)

Biodegradable functional fluid for mechanic drives (United States Patent 6,913,707)

Targeted delivery via biodegradable polymers (United States Patent 6,911,216)

Method for adjusting the shape of a biodegradable and bioabsorbable implant material (United States Patent 6,908,582)

Surgical devices having a biodegradable material with a therapeutic agent (United States Patent 6,908,466)

Biodegradable films having enhanced ductility and breathability (United States Patent 6,905,759)

Method and apparatus for the treatment of particulate biodegradable organic waste (United States Patent 6,905,600)

Agricultural items and agricultural methods comprising biodegradable copolymers (United States Patent 6,903,053)

Therapeutic treatment and prevention of infections with a bioactive material(s) encapuslated within a biodegradable-bio-compatable polymeric matrix (United States Patent 6,902,743)

Polyacrylates with improved biodegradability (United States Patent 6,900,171)

Biodegradable polyester and natural polymer laminates (United States Patent 6,893,527)

Water-responsive biodegradable polymer compositions and method of making same (United States Patent 6,890,989)

Fibers comprising starch and biodegradable polymers (United States Patent 6,890,872)

Apparatus for aeration without significant agitation to deplete and biodegrade sludge (United States Patent 6,884,353)

Biodegradable polyacetals (United States Patent 6,878,374)

Biodegradable or compostable containers (United States Patent 6,878,199)

Biodegradable drug delivery vascular stent (United States Patent 6,869,443)

Ionic molecular conjugates of biodegradable polyesters and bioactive polypeptides (United States Patent 6,867,181)

Biodegradable fixation element (United States Patent 6,863,671)

Preparation method of biodegradable porous polymer scaffolds having an improved cell compatibility for tissue engineering (United States Patent 6,861,087)

Fabrication of drug loaded biodegradable polymer fibers (United States Patent 6,858,222)

Resin compositions having biodegradation and hydrolysis properties (United States Patent 6,852,807)

Biodegradable chum container (United States Patent 6,848,210)

Biodegradable plastic composition, a molded article thereof and a method for controlling biodegradation rate (United States Patent 6,846,860)

Therapeutic treatment and prevention of infections with a bioactive materials encapsulated within a biodegradable-biocompatible polymeric matrix (United States Patent 6,844,010)

Thermogelling biodegradable aqueous polymer solution (United States Patent 6,841,617)

Ternary mixture of biodegradable polyesters and products obtained therefrom (United States Patent 6,841,597)

Methods, compositions and biodegradable fluid loss control additives for cementing subterranean zones (United States Patent 6,840,319)

Breathable, biodegradable/compostable laminates (United States Patent 6,838,403)

Method for making biodegradable polyhydroxyalkanoate copolymers having improved crystallization properties (United States Patent 6,838,037)

Biodegradable composition and products prepared therefrom (United States Patent 6,835,764)

Biocompatible, biodegradable, water-absorbent material and methods for its preparation (United States Patent 6,833,488)

Biodegradable block for models (United States Patent 6,833,097)

Biodegradable aliphatic-aromatic copolyester films (United States Patent 7,153,569)

Biodegradable aliphatic polyester grafted with poly(ethylene glycol) having reactive groups and preparation method thereof (United States Patent 7,151,142)

Biodegradable material based on polymer and cereal flour, method for making same and uses (United States Patent 7,148,272)

Production of biodegradable thermoplastic materials from organic wastes (United States Patent 7,141,400)

Biodegradable compounds including poly(lactic acid) polymer compositions and products (United States Patent 7,138,439)

Method for preparing biodegradable polyester and itself prepared thereby (United States Patent 7,138,179)

Adhesive based on biodegradable acrylates (United States Patent 7,135,591)

Resilient biodegradable packaging materials (United States Patent 7,135,063)

Biodegradable composition having improved water resistance and process for producing same (United States Patent 7,132,463)

Biodegradable and biocompatible polymeric microspheres encapsulating Salmonella enteritidis bacteria (United States Patent 7,132,108)

Method for preparing a biodegradable copolyester (United States Patent 7,129,301)

Fiber article comprising a biodegradable plastic (United States Patent 7,129,190)

Expandable biodegradable polymeric stents for combined mechanical support and pharmacological or radiation therapy (United States Patent 7,128,755)

Releasable polymeric conjugates based on aliphatic biodegradable linkers (United States Patent 7,122,189)

Biodegradable corrosion inhibitor composition (United States Patent 7,118,615)

Biodegradable glucosaminemuramyl peptides for apoptosis modulation (United States Patent 7,112,564)

Production of a composite material having a biodegradable plastic substrate and at least one coating (United States Patent 7,109,070)

Biodegradable polymer (United States Patent 7,094,817)

Biodegradable common bile duct stent and the method for preparing thereof (United States Patent 7,094,260)

One-time use composite tool formed of fibers and a biodegradable resin (United States Patent 7,093,664)

Releasable polymeric conjugates based on aliphatic biodegradable linkers (United States Patent 7,087,229)

Biodegradable or compostable containers (United States Patent 7,083,673)

Biodegradable chelant compositions for fracturing fluid (United States Patent 7,078,370)

Biodegradable starch resin and method for making same (United States Patent 7,071,249)

Biodegradable lubricating composition and uses thereof, in particular in a bore fluid (United States Patent 7,071,150)

Non-synthetic biodegradable starch-based composition for production of shaped bodies (United States Patent 7,067,651)

Ternary mixtures of biodegradable polyesters and products manufactured from them (United States Patent 7,067,596)

Process of preparation of biodegradable films from semi refined kappa carrageenan (United States Patent 7,067,568)

Biodegradable microparticles that stabilize and control the release of proteins (United States Patent 7,060,299)

Biodegradable functional fluid for mechanical drives (United States Patent 7,060,199)

Fibers formed of a biodegradable polymer and having a low friction surface (United States Patent 7,056,580)

Grafted biodegradable polymer blend compositions (United States Patent 7,053,151)

Method to accelerate biodegradation of aliphatic-aromatic co-polyesters by enzymatic treatment (United States Patent 7,053,130)

Capillary membrane stabilization and reduction of tissue injury through use of IV biodegradable macromolecules with antioxidants and/or other chemicals (United States Patent 7,041,655)

Use of biodegradable microspheres that release an anticancer agent for treating gliobastoma (United States Patent 7,041,241)

Methods of making functional biodegradable polymers (United States Patent 7,037,983)

Biodegradable polymer compositions methods for making same and articles therefrom (United States Patent 7,037,959)

Drug releasing biodegradable fiber for delivery of therapeutics (United States Patent 7,033,603)

Biodegradable sediment barrier (United States Patent 7,029,208)

Biodegradable, thermoplastic molding materials (United States Patent 7,015,269)

Biodegradable stent (United States Patent 7,011,678)

Biodegradable ether dry cleaning solvent (United States Patent 7,008,458)

Biodegradable polycation composition for delivery of an anionic macromolecule (United States Patent 7,001,891)

Microbial biodegradation of phosphonates (United States Patent 7,001,758)

Biodegradable poly(.beta.-amino esters) and uses thereof (United States Patent 6,998,115)

Biodegradable polylactide resin composition (United States Patent 6,987,138)

Biodegradable bag (United States Patent 6,984,426)

Biodegradable elastomer and method of preparing same (United States Patent 6,984,393)

Method of making biodegradable non-polluting product (United States Patent 6,979,417)

Device for delivering non-biodegradable bulking composition to a urological site (United States Patent 6,979,317)

Compositions and methods for biodegradable microspheres as carriers of bioactive substances (United States Patent 6,962,716)

Biodegradable bag (United States Patent 6,960,374)

Biodegradable bicomponent fibers with improved thermal-dimensional stability (United States Patent 6,953,622)

Stable and biodegradable foamed cement slurries, additives and methods (United States Patent 6,953,505)

Cementing subterranean zones using cement compositions containing biodegradable dispersants (United States Patent 6,953,090)

Tumor selective and biodegradable polyphosphazene-platinum(II) conjugate antitumor agent, and preparation method thereof (United States Patent 6,951,953)

Device for plugging an opening such as in a wall of a hollow or tubular organ including biodegradable elements (United States Patent 6,949,116)

Fibers comprising starch and biodegradable polymers (United States Patent 6,946,506)

Medical materials and porous scaffolds for tissue engineering made from the biodegradable glycolide/.epsilon.-caprolactone copolymer (United States Patent 6,946,143)

Concentrated, preferably biodegradable, quaternary ammonium fabric softener compositions containing cationic polymers and process for preparation (United States Patent 6,939,844)

Biodegradable tissue retractor (United States Patent 6,936,005)

Composition of crosslinkable prepolymers for biodegradable implants (United States Patent 6,933,328)

Disposable and biodegradable paper cup (United States Patent 6,926,197)

Multiblock biodegradable hydrogels for drug delivery and tissue treatment (United States Patent 6,923,986)

Liquid composition of biodegradable block copolymer for drug delivery system and process for the preparation thereof (United States Patent 6,916,788)

Transparent pipe trap with means of enhancing the biodegradation of sink effluents (United States Patent 6,915,814)

Biodegradable polyester polymer and method for preparing the same using compressed gas (United States Patent 6,913,826)

Biodegradable functional fluid for mechanic drives (United States Patent 6,913,707)

Targeted delivery via biodegradable polymers (United States Patent 6,911,216)

Method for adjusting the shape of a biodegradable and bioabsorbable implant material (United States Patent 6,908,582)

Surgical devices having a biodegradable material with a therapeutic agent (United States Patent 6,908,466)

Biodegradable films having enhanced ductility and breathability (United States Patent 6,905,759)

Method and apparatus for the treatment of particulate biodegradable organic waste (United States Patent 6,905,600)

Agricultural items and agricultural methods comprising biodegradable copolymers (United States Patent 6,903,053)

Therapeutic treatment and prevention of infections with a bioactive material(s) encapuslated within a biodegradable-bio-compatable polymeric matrix (United States Patent 6,902,743)

Polyacrylates with improved biodegradability (United States Patent 6,900,171)

Biodegradable polyester and natural polymer laminates (United States Patent 6,893,527)

Water-responsive biodegradable polymer compositions and method of making same (United States Patent 6,890,989)

Fibers comprising starch and biodegradable polymers (United States Patent 6,890,872)

Apparatus for aeration without significant agitation to deplete and biodegrade sludge (United States Patent 6,884,353)

Biodegradable polyacetals (United States Patent 6,878,374)

Biodegradable or compostable containers (United States Patent 6,878,199)

Biodegradable drug delivery vascular stent (United States Patent 6,869,443)

Ionic molecular conjugates of biodegradable polyesters and bioactive polypeptides (United States Patent 6,867,181)

Biodegradable fixation element (United States Patent 6,863,671)

Preparation method of biodegradable porous polymer scaffolds having an improved cell compatibility for tissue engineering (United States Patent 6,861,087)

Fabrication of drug loaded biodegradable polymer fibers (United States Patent 6,858,222)

Resin compositions having biodegradation and hydrolysis properties (United States Patent 6,852,807)

Biodegradable chum container (United States Patent 6,848,210)

Biodegradable plastic composition, a molded article thereof and a method for controlling biodegradation rate (United States Patent 6,846,860)

Therapeutic treatment and prevention of infections with a bioactive materials encapsulated within a biodegradable-biocompatible polymeric matrix (United States Patent 6,844,010)

Thermogelling biodegradable aqueous polymer solution (United States Patent 6,841,617)

Ternary mixture of biodegradable polyesters and products obtained therefrom (United States Patent 6,841,597)

Methods, compositions and biodegradable fluid loss control additives for cementing subterranean zones (United States Patent 6,840,319)

Breathable, biodegradable/compostable laminates (United States Patent 6,838,403)

Method for making biodegradable polyhydroxyalkanoate copolymers having improved crystallization properties (United States Patent 6,838,037)

Biodegradable composition and products prepared therefrom (United States Patent 6,835,764)

Biocompatible, biodegradable, water-absorbent material and methods for its preparation (United States Patent 6,833,488)

Biodegradable block for models (United States Patent 6,833,097)

Biodegradable aliphatic-aromatic copolyester films (United States Patent 7,153,569)

Biodegradable aliphatic polyester grafted with poly(ethylene glycol) having reactive groups and preparation method thereof (United States Patent 7,151,142)

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.