Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880076 | Hearing aid ear piece having disposable compressible polymeric foam sleeve | Carl S. Ahlberg, Davis W. Chamberlin, Jerold W. Bushong, Robert J. Oliveira | 1989-11-14 |
VK
Vasant V. Kolpe
Overall (1989): #46,878 of 140,708Top 35%
1
Patents 1989