


Professor Demchick's Patent Services
Paul H. Demchick, United States Registered Patent Agent
(United States Patent and Trademark Office Registration 52,808)
PATENTS RELATED TO WALKING While it is true that Dr. Demchick is no athlete, he does enjoy walking. He has a special interest in inventions that improve the walking experience.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 walking 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.
Handle with light for walking member (United States Patent 7,059,738)
Walking condition determining device and method (United States Patent 6,980,919)
Walking support having shoehorn/gripper and magnet accessories (United States Patent 6,951,224)
Multifunctional shoes for walking and skating with single roller (United States Patent 6,926,289)
Portable terminal with the function of walking navigation (United States Patent 6,922,630)
Expandable inline skate storage and walking shoe (United States Patent 6,916,046)
Walking shoe (United States Patent 6,785,984)
Footwear for a dynamic, rolling walking-action (United States Patent 6,782,639)
Shoes for walking and rolling (United States Patent 6,764,082)
Lofty visual warning devices for walking shoes (United States Patent 6,742,908)
Indoor walking workout facility (United States Patent 6,740,017)
Mud walking shoe (United States Patent 6,729,049)
Ventilated walking shoe (United States Patent 6,729,044)
Walking assisting apparatus (United States Patent 6,666,796)
System, method and apparatus for measuring walking and running distance (United States Patent 6,658,079)
Downward offset barbell type walking beam compositively balance oil pump (United States Patent 6,655,224)
Roller skates having improved appearance and function as walking shoes (United States Patent 6,634,656)
Dynamic seating and walking wheelchair (United States Patent 6,619,681)
Portable terminal with the function of walking navigation (United States Patent 6,580,999)
Driving and walking shoe (United States Patent 6,519,875)
Directionally illuminated walking aid (United States Patent 6,463,947)
Walking assistance device incorporating gas storage vessel comprising a polymeric container system for pressurized fluids (United States Patent 6,453,920)
Shoe for skating and walking (United States Patent 6,450,508)
Walking aid (United States Patent 6,367,823)
Walking and in-line skate shoe (United States Patent 6,343,800)
Animal walking and training collar (United States Patent 6,308,663)
Anti-tangle/twist multi-animal walking leash (United States Patent 6,273,029)
Footwear that can be worn for walking or skating (United States Patent 6,247,708)
Powered lighting for in-line skates, rollerskates, ice skates, and for walking or jogging (United States Patent 6,238,055)
Convertible amphibious shoes for swimming and walking (United States Patent 6,155,898)
Adjustable ice skate storage and walking shoe (United States Patent 6,142,528)
Walking and in-line skate shoe (United States Patent 6,120,039)
Footwear for walking on an inclined roof (United States Patent 6,035,557)
Shoehorn for use with walking cane (United States Patent 5,961,012)
Amphibious swimming and walking shoe (United States Patent 5,924,902)
Walking substructure device (United States Patent 5,921,336)
Artificial foot that enables Limp-free walking (United States Patent 5,913,902)
One legged two handed walking device (United States Patent 5,904,167)
Exercise walking stick (United States Patent 5,876,312)
Anti-tangle/twist multi-pet walking-leash (United States Patent 5,852,988)
Footwear device for reducing walking related noise (United States Patent 5,799,418)
Dual handled walking and uprisal assist device (United States Patent 5,785,070)
Adjustable inline skate storage and walking shoe (United States Patent 5,765,870)
Walking and hopping shoe with a massaging sole surface (United States Patent 5,752,329)
Multi-layer sole construction for walking shoes (United States Patent 5,718,064)
Walking aid (United States Patent 5,716,063)
Dragline including improved walking mechanism (United States Patent 5,603,174)
Shoe with walking sole (United States Patent 5,592,757)
Universal attachment for walking assistive devices (United States Patent 5,524,657)
Shoes for walking and roller skating (United States Patent 5,398,970)
Device for assisting running, walking or jumping (United States Patent 5,362,288)
Portable ice walking assistance device (United States Patent 5,357,692)
Walking assistance night light apparatus (United States Patent 5,339,853)
Non-slip support shoe for a walking aid (United States Patent 5,335,683)
Walking beam track tension device (United States Patent 5,246,246)
Handless walking aid for preventing falls from loss of balance (United States Patent 5,152,730)
Water walking device (United States Patent 5,080,621)
Device for enabling walking and protecting cleats on cycling shoes for quick release (clipless) pedals (United States Patent 5,031,342)
Exercise-enhancing walking shoe (United States Patent 4,934,073)
Walking shoe with padded collar (United States Patent 4,856,209)
Walking shoe (United States Patent 4,827,631)
Cleated shoe walking sole (United States Patent 4,807,372)
Water walking shoes (United States Patent 4,801,284)
Wheeled walking device (United States Patent 4,765,355)
Walking facility or anti-skid means for footgear (United States Patent 4,727,662)
Pneumatic walking brace and operating system (United States Patent 4,557,257)
Walking aid, particularly for handicapped persons (United States Patent 4,510,956)
Walking attachment for roller skates (United States Patent 4,413,842)
Offset walking spud (United States Patent 4,334,587)
Walking roof support (United States Patent 4,293,248)
Traction device for walking on ice (United States Patent 4,286,396)
Walking drag line (United States Patent 4,252,204)
Walking boot for surgical leg cast (United States Patent 4,094,312)
Walking cast (United States Patent 4,057,056)
Cover for bicycling shoe to provide a walking surface (United States Patent 4,055,005)
Walking aid (United States Patent 4,046,374)
Apparatus for walking on water or land (United States Patent 4,037,280)
Shoe usable for walking and roller-skating (United States Patent 3,983,643)
Buoyant water-walking apparatus (United States Patent 3,936,897)
Handle with light for walking member (United States Patent 7,059,738)
Walking condition determining device and method (United States Patent 6,980,919)
Walking support having shoehorn/gripper and magnet accessories (United States Patent 6,951,224)
Multifunctional shoes for walking and skating with single roller (United States Patent 6,926,289)
Portable terminal with the function of walking navigation (United States Patent 6,922,630)
Expandable inline skate storage and walking shoe (United States Patent 6,916,046)
Walking shoe (United States Patent 6,785,984)
Footwear for a dynamic, rolling walking-action (United States Patent 6,782,639)
Shoes for walking and rolling (United States Patent 6,764,082)
Lofty visual warning devices for walking shoes (United States Patent 6,742,908)
Indoor walking workout facility (United States Patent 6,740,017)
Mud walking shoe (United States Patent 6,729,049)
Ventilated walking shoe (United States Patent 6,729,044)
Walking assisting apparatus (United States Patent 6,666,796)
System, method and apparatus for measuring walking and running distance (United States Patent 6,658,079)
Downward offset barbell type walking beam compositively balance oil pump (United States Patent 6,655,224)
Roller skates having improved appearance and function as walking shoes (United States Patent 6,634,656)
Dynamic seating and walking wheelchair (United States Patent 6,619,681)
Portable terminal with the function of walking navigation (United States Patent 6,580,999)
Driving and walking shoe (United States Patent 6,519,875)
Directionally illuminated walking aid (United States Patent 6,463,947)
Walking assistance device incorporating gas storage vessel comprising a polymeric container system for pressurized fluids (United States Patent 6,453,920)
Shoe for skating and walking (United States Patent 6,450,508)
Walking aid (United States Patent 6,367,823)
Walking and in-line skate shoe (United States Patent 6,343,800)
Animal walking and training collar (United States Patent 6,308,663)
Anti-tangle/twist multi-animal walking leash (United States Patent 6,273,029)
Footwear that can be worn for walking or skating (United States Patent 6,247,708)
Powered lighting for in-line skates, rollerskates, ice skates, and for walking or jogging (United States Patent 6,238,055)
Convertible amphibious shoes for swimming and walking (United States Patent 6,155,898)
Adjustable ice skate storage and walking shoe (United States Patent 6,142,528)
Walking and in-line skate shoe (United States Patent 6,120,039)
Footwear for walking on an inclined roof (United States Patent 6,035,557)
Shoehorn for use with walking cane (United States Patent 5,961,012)
Amphibious swimming and walking shoe (United States Patent 5,924,902)
Walking substructure device (United States Patent 5,921,336)
Artificial foot that enables Limp-free walking (United States Patent 5,913,902)
One legged two handed walking device (United States Patent 5,904,167)
Exercise walking stick (United States Patent 5,876,312)
Anti-tangle/twist multi-pet walking-leash (United States Patent 5,852,988)
Footwear device for reducing walking related noise (United States Patent 5,799,418)
Dual handled walking and uprisal assist device (United States Patent 5,785,070)
Adjustable inline skate storage and walking shoe (United States Patent 5,765,870)
Walking and hopping shoe with a massaging sole surface (United States Patent 5,752,329)
Multi-layer sole construction for walking shoes (United States Patent 5,718,064)
Walking aid (United States Patent 5,716,063)
Dragline including improved walking mechanism (United States Patent 5,603,174)
Shoe with walking sole (United States Patent 5,592,757)
Universal attachment for walking assistive devices (United States Patent 5,524,657)
Shoes for walking and roller skating (United States Patent 5,398,970)
Device for assisting running, walking or jumping (United States Patent 5,362,288)
Portable ice walking assistance device (United States Patent 5,357,692)
Walking assistance night light apparatus (United States Patent 5,339,853)
Non-slip support shoe for a walking aid (United States Patent 5,335,683)
Walking beam track tension device (United States Patent 5,246,246)
Handless walking aid for preventing falls from loss of balance (United States Patent 5,152,730)
Water walking device (United States Patent 5,080,621)
Device for enabling walking and protecting cleats on cycling shoes for quick release (clipless) pedals (United States Patent 5,031,342)
Exercise-enhancing walking shoe (United States Patent 4,934,073)
Walking shoe with padded collar (United States Patent 4,856,209)
Walking shoe (United States Patent 4,827,631)
Cleated shoe walking sole (United States Patent 4,807,372)
Water walking shoes (United States Patent 4,801,284)
Wheeled walking device (United States Patent 4,765,355)
Walking facility or anti-skid means for footgear (United States Patent 4,727,662)
Pneumatic walking brace and operating system (United States Patent 4,557,257)
Walking aid, particularly for handicapped persons (United States Patent 4,510,956)
Walking attachment for roller skates (United States Patent 4,413,842)
Offset walking spud (United States Patent 4,334,587)
Walking roof support (United States Patent 4,293,248)
Traction device for walking on ice (United States Patent 4,286,396)
Walking drag line (United States Patent 4,252,204)
Walking boot for surgical leg cast (United States Patent 4,094,312)
Walking cast (United States Patent 4,057,056)
Cover for bicycling shoe to provide a walking surface (United States Patent 4,055,005)
Walking aid (United States Patent 4,046,374)
Apparatus for walking on water or land (United States Patent 4,037,280)
Shoe usable for walking and roller-skating (United States Patent 3,983,643)
Buoyant water-walking apparatus (United States Patent 3,936,897)
Handle with light for walking member (United States Patent 7,059,738)
Walking condition determining device and method (United States Patent 6,980,919)
Walking support having shoehorn/gripper and magnet accessories (United States Patent 6,951,224)
Multifunctional shoes for walking and skating with single roller (United States Patent 6,926,289)
Portable terminal with the function of walking navigation (United States Patent 6,922,630)
Expandable inline skate storage and walking shoe (United States Patent 6,916,046)
Walking shoe (United States Patent 6,785,984)
Footwear for a dynamic, rolling walking-action (United States Patent 6,782,639)
Shoes for walking and rolling (United States Patent 6,764,082)
Lofty visual warning devices for walking shoes (United States Patent 6,742,908)
Indoor walking workout facility (United States Patent 6,740,017)
Mud walking shoe (United States Patent 6,729,049)
Ventilated walking shoe (United States Patent 6,729,044)
Walking assisting apparatus (United States Patent 6,666,796)
System, method and apparatus for measuring walking and running distance (United States Patent 6,658,079)
Downward offset barbell type walking beam compositively balance oil pump (United States Patent 6,655,224)
Roller skates having improved appearance and function as walking shoes (United States Patent 6,634,656)
Dynamic seating and walking wheelchair (United States Patent 6,619,681)
Portable terminal with the function of walking navigation (United States Patent 6,580,999)
Driving and walking shoe (United States Patent 6,519,875)
Directionally illuminated walking aid (United States Patent 6,463,947)
Walking assistance device incorporating gas storage vessel comprising a polymeric container system for pressurized fluids (United States Patent 6,453,920)
Shoe for skating and walking (United States Patent 6,450,508)
Walking aid (United States Patent 6,367,823)
Walking and in-line skate shoe (United States Patent 6,343,800)
Animal walking and training collar (United States Patent 6,308,663)
Anti-tangle/twist multi-animal walking leash (United States Patent 6,273,029)
Footwear that can be worn for walking or skating (United States Patent 6,247,708)
Powered lighting for in-line skates, rollerskates, ice skates, and for walking or jogging (United States Patent 6,238,055)
Convertible amphibious shoes for swimming and walking (United States Patent 6,155,898)
Adjustable ice skate storage and walking shoe (United States Patent 6,142,528)
Walking and in-line skate shoe (United States Patent 6,120,039)
Footwear for walking on an inclined roof (United States Patent 6,035,557)
Shoehorn for use with walking cane (United States Patent 5,961,012)
Amphibious swimming and walking shoe (United States Patent 5,924,902)
Walking substructure device (United States Patent 5,921,336)
Artificial foot that enables Limp-free walking (United States Patent 5,913,902)
One legged two handed walking device (United States Patent 5,904,167)
Exercise walking stick (United States Patent 5,876,312)
Anti-tangle/twist multi-pet walking-leash (United States Patent 5,852,988)
Footwear device for reducing walking related noise (United States Patent 5,799,418)
Dual handled walking and uprisal assist device (United States Patent 5,785,070)
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.