PATENTS RELATED TO LEASHES

Dr. Demchick has handled client patent matters related to leashes.

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 leashes 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.

Wearable retracting animal leash (United States Patent 7,150,247)

Pet leash for two (United States Patent 7,114,467)

Combination training lead and multiple animal leash (United States Patent 7,096,827)

Leash with integrated pocket (United States Patent 7,063,045)

Dog leash handle (United States Patent 7,044,080)

Umbrella and leash for pets (United States Patent 7,036,519)

Leash assembly (United States Patent 7,036,459)

Pet collar with retractable leash (United States Patent 7,017,527)

Dog leash for use on bicycle (United States Patent 7,013,840)

Animal restraint apparatus with elevated leash attachment (United States Patent 7,004,114)

Elastic dog leash and coupler (United States Patent 6,990,929)

Abrasion resistant omnidirectionally reflective pet leash (United States Patent 6,978,738)

Stretchable dog leash (United States Patent 6,971,334)

Retractable leash assembly with a quick connect coupling assembly (United States Patent 6,955,138)

Illuminated retractable leash (United States Patent 6,925,967)

Omnidirectional reflective pet leash (United States Patent 6,925,965)

Retractable leash for animals (United States Patent 6,904,872)

Animal leash and running device (United States Patent 6,886,498)

Pet umbrella and combined pet leash and umbrella (United States Patent 6,871,616)

Animal leash system (United States Patent 6,851,393)

Combination ball and dog leash (United States Patent 6,845,737)

Leash with frictionally resistant slidably mounted grip (United States Patent 6,827,045)

Retractable two-pet leash (United States Patent 6,792,893)

Rear support pet leash (United States Patent 6,729,268)

Double dog run and leash (United States Patent 6,701,873)

Pet harness with quick connect stand-up leash (United States Patent 6,694,923)

Retractable pet leash (United States Patent 6,688,260)

Adjustable loop leash construction (United States Patent 6,675,742)

Multi-functional animal leash (United States Patent 6,662,753)

Quick release leash and quick release coupling assembly (United States Patent 6,629,511)

Multiple pet leash (United States Patent 6,626,132)

Weighted handle dog leash (United States Patent 6,619,239)

Animal leash system (United States Patent 6,619,238)

Dog leash training device (United States Patent 6,612,264)

Pet collar with retractable leash (United States Patent 6,581,547)

Wrist worn leash retaining device (United States Patent 6,553,944)

Locking leash and collar system (United States Patent 6,532,903)

Collar with self-retracting leash (United States Patent 6,481,382)

Leash for multiple dogs (United States Patent 6,474,270)

Animal leash and method of manufacture (United States Patent 6,460,488)

Portable container for pet leash (United States Patent 6,454,119)

Animal restraint leash (United States Patent 6,453,851)

Leash assembly (United States Patent 6,450,129)

Pet apparel with leash (United States Patent 6,443,101)

Dual pet leash (United States Patent 6,439,168)

Leash Pouch (United States Patent 6,418,881)

Adjustable leash controlled strain reducing animal harness (United States Patent 6,401,666)

Leash (United States Patent 6,371,055)

Combination dog collar and leash system (United States Patent 6,367,428)

Convertible animal control leash (United States Patent 6,340,001)

Device for training an animal on the leash (United States Patent 6,327,998)

Retractable leash support (United States Patent 6,318,302)

Retractable leash pack (United States Patent 6,314,917)

Animal leash (United States Patent 6,308,662)

Compact dog leash (United States Patent 6,276,305)

Locking leash and collar system (United States Patent 6,269,777)

Safety restraint and release leash (United States Patent 6,267,081)

Quick release leash (United States Patent 6,247,427)

Leash assembly having pet refuse bag dispenser mechanism (United States Patent 6,240,881)

Multiple dog leash (United States Patent 6,237,539)

Quick release leash assembly (United States Patent 6,230,663)

Leash assembly having pet refuse bag dispenser mechanism (United States Patent 6,223,695)

Ergonomic animal leash (United States Patent 6,223,694)

Collar and leash assembly (United States Patent 6,205,956)

Hands-free pet leash system (United States Patent 6,192,835)

Brake lock mechanism for animal leash assembly (United States Patent 6,148,773)

Pet lock collar leash (United States Patent 6,095,094)

Animal leash assembly (United States Patent 6,095,093)

Hand grip for animal leash (United States Patent 6,089,193)

Night visibility enhanced clothing and dog leash (United States Patent 6,085,698)

Leash assembly for animals (United States Patent 6,085,696)

Universally attachable leash bag (United States Patent 6,085,695)

Leash attachment for a truckbed (United States Patent 6,079,369)

Pet refuse bag dispenser attachable to a leash or collar (United States Patent 6,076,717)

Dog leash with bag container (United States Patent 6,073,590)

Animal walking leash apparatus (United States Patent 6,053,129)

Safety leash (United States Patent 6,053,128)

Electronic training leash and collar (United States Patent 6,047,664)

Leash pouch for animal waste (United States Patent 6,035,809)

Leash-tension-controlled stimulus-producing dog collar and method (United States Patent 6,003,474)

Multi-functional retractable pet leash apparatus (United States Patent 5,983,836)

Illuminated pet leash (United States Patent 5,967,095)

Water resistant lighted leash and collar (United States Patent 5,950,571)

Hands free dog leash (United States Patent 5,950,569)

Leash-controllable dog harness formed by continuous loop (United States Patent 5,934,224)

Animal leash (United States Patent 5,915,336)

Animal leash for multiple animals (United States Patent 5,901,668)

Pet leash multi-purpose utility bag (United States Patent 5,890,637)

Retractable animal leash device (United States Patent 5,890,456)

Combined retractable pet leash and flashlight (United States Patent 5,887,550)

Pet leash with length-limited elastic section (United States Patent 5,873,328)

Buckle for a dog leash (United States Patent 5,864,927)

Illuminated pet leash (United States Patent 5,850,807)

Apparatus for attaching a pet leash to a bicycle (United States Patent 5,842,445)

Hands free dog leash (United States Patent 5,842,444)

Safety leash (United States Patent 5,839,394)

Leash (United States Patent 5,826,547)

Counterweighted pet leash retracting collar (United States Patent 5,816,198)

Pet leash (United States Patent 5,806,467)

Animal leash (United States Patent 5,803,017)

Wearable retracting animal leash (United States Patent 7,150,247)

Pet leash for two (United States Patent 7,114,467)

Combination training lead and multiple animal leash (United States Patent 7,096,827)

Leash with integrated pocket (United States Patent 7,063,045)

Dog leash handle (United States Patent 7,044,080)

Umbrella and leash for pets (United States Patent 7,036,519)

Leash assembly (United States Patent 7,036,459)

Pet collar with retractable leash (United States Patent 7,017,527)

Dog leash for use on bicycle (United States Patent 7,013,840)

Animal restraint apparatus with elevated leash attachment (United States Patent 7,004,114)

Elastic dog leash and coupler (United States Patent 6,990,929)

Abrasion resistant omnidirectionally reflective pet leash (United States Patent 6,978,738)

Stretchable dog leash (United States Patent 6,971,334)

Retractable leash assembly with a quick connect coupling assembly (United States Patent 6,955,138)

Illuminated retractable leash (United States Patent 6,925,967)

Omnidirectional reflective pet leash (United States Patent 6,925,965)

Retractable leash for animals (United States Patent 6,904,872)

Animal leash and running device (United States Patent 6,886,498)

Pet umbrella and combined pet leash and umbrella (United States Patent 6,871,616)

Animal leash system (United States Patent 6,851,393)

Combination ball and dog leash (United States Patent 6,845,737)

Leash with frictionally resistant slidably mounted grip (United States Patent 6,827,045)

Retractable two-pet leash (United States Patent 6,792,893)

Rear support pet leash (United States Patent 6,729,268)

Double dog run and leash (United States Patent 6,701,873)

Pet harness with quick connect stand-up leash (United States Patent 6,694,923)

Retractable pet leash (United States Patent 6,688,260)

Adjustable loop leash construction (United States Patent 6,675,742)

Multi-functional animal leash (United States Patent 6,662,753)

Quick release leash and quick release coupling assembly (United States Patent 6,629,511)

Multiple pet leash (United States Patent 6,626,132)

Weighted handle dog leash (United States Patent 6,619,239)

Animal leash system (United States Patent 6,619,238)

Dog leash training device (United States Patent 6,612,264)

Pet collar with retractable leash (United States Patent 6,581,547)

Wrist worn leash retaining device (United States Patent 6,553,944)

Locking leash and collar system (United States Patent 6,532,903)

Collar with self-retracting leash (United States Patent 6,481,382)

Leash for multiple dogs (United States Patent 6,474,270)

Animal leash and method of manufacture (United States Patent 6,460,488)

Portable container for pet leash (United States Patent 6,454,119)

Animal restraint leash (United States Patent 6,453,851)

Leash assembly (United States Patent 6,450,129)

Pet apparel with leash (United States Patent 6,443,101)

Dual pet leash (United States Patent 6,439,168)

Leash Pouch (United States Patent 6,418,881)

Adjustable leash controlled strain reducing animal harness (United States Patent 6,401,666)

Leash (United States Patent 6,371,055)

Combination dog collar and leash system (United States Patent 6,367,428)

Convertible animal control leash (United States Patent 6,340,001)

Device for training an animal on the leash (United States Patent 6,327,998)

Retractable leash support (United States Patent 6,318,302)

Retractable leash pack (United States Patent 6,314,917)

Animal leash (United States Patent 6,308,662)

Compact dog leash (United States Patent 6,276,305)

Locking leash and collar system (United States Patent 6,269,777)

Safety restraint and release leash (United States Patent 6,267,081)

Quick release leash (United States Patent 6,247,427)

Leash assembly having pet refuse bag dispenser mechanism (United States Patent 6,240,881)

Multiple dog leash (United States Patent 6,237,539)

Quick release leash assembly (United States Patent 6,230,663)

Leash assembly having pet refuse bag dispenser mechanism (United States Patent 6,223,695)

Ergonomic animal leash (United States Patent 6,223,694)

Collar and leash assembly (United States Patent 6,205,956)

Hands-free pet leash system (United States Patent 6,192,835)

Brake lock mechanism for animal leash assembly (United States Patent 6,148,773)

Pet lock collar leash (United States Patent 6,095,094)

Animal leash assembly (United States Patent 6,095,093)

Hand grip for animal leash (United States Patent 6,089,193)

Night visibility enhanced clothing and dog leash (United States Patent 6,085,698)

Leash assembly for animals (United States Patent 6,085,696)

Universally attachable leash bag (United States Patent 6,085,695)

Leash attachment for a truckbed (United States Patent 6,079,369)

Pet refuse bag dispenser attachable to a leash or collar (United States Patent 6,076,717)

Dog leash with bag container (United States Patent 6,073,590)

Animal walking leash apparatus (United States Patent 6,053,129)

Safety leash (United States Patent 6,053,128)

Electronic training leash and collar (United States Patent 6,047,664)

Leash pouch for animal waste (United States Patent 6,035,809)

Leash-tension-controlled stimulus-producing dog collar and method (United States Patent 6,003,474)

Multi-functional retractable pet leash apparatus (United States Patent 5,983,836)

Illuminated pet leash (United States Patent 5,967,095)

Water resistant lighted leash and collar (United States Patent 5,950,571)

Hands free dog leash (United States Patent 5,950,569)

Leash-controllable dog harness formed by continuous loop (United States Patent 5,934,224)

Animal leash (United States Patent 5,915,336)

Animal leash for multiple animals (United States Patent 5,901,668)

Pet leash multi-purpose utility bag (United States Patent 5,890,637)

Retractable animal leash device (United States Patent 5,890,456)

Combined retractable pet leash and flashlight (United States Patent 5,887,550)

Pet leash with length-limited elastic section (United States Patent 5,873,328)

Buckle for a dog leash (United States Patent 5,864,927)

Illuminated pet leash (United States Patent 5,850,807)

Apparatus for attaching a pet leash to a bicycle (United States Patent 5,842,445)

Hands free dog leash (United States Patent 5,842,444)

Safety leash (United States Patent 5,839,394)

Leash (United States Patent 5,826,547)

Counterweighted pet leash retracting collar (United States Patent 5,816,198)

Pet leash (United States Patent 5,806,467)

Animal leash (United States Patent 5,803,017)

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.