DS

Donald W. Schaefer

IBM: 3 patents #26,272 of 70,183Top 40%
MD Medical Devices: 2 patents #7 of 20Top 35%
📍 Lakewood, CO: #156 of 1,100 inventorsTop 15%
🗺 Colorado: #7,649 of 40,980 inventorsTop 20%
Overall (All Time): #889,246 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5490520 Dental applicance for treating bruxism Melvin P. Siedband 1996-02-13
4850962 Implantable hearing aid and method of improving hearing 1989-07-25
4729366 Implantable hearing aid and method of improving hearing 1988-03-08
4437659 Rotary drum for processing sheet materials Christopher D. Caron 1984-03-20
4299186 Method and apparatus for applying a viscous fluid to a substrate David J. Pipkin 1981-11-10
4189759 Cantilevered head support arm having increased resonance frequency Randall C. Bauck, Raymond E. Kellow, Sr., Richard E. Norwood 1980-02-19