Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5357639 | Bath seat and splash shield | — | 1994-10-25 |
| D351018 | Bathtub for invalids | Elroy E. Bourgraf, John C. Coons | 1994-09-27 |
| 5090068 | Bath with interfitting seat | — | 1992-02-25 |
| 4996729 | Adaptable bathing assistance | — | 1991-03-05 |
| 4592099 | Tiltable bathtub for invalids | — | 1986-06-03 |
| D260096 | Microfilm reader | John W. Overman, Michael V. Polinsky | 1981-08-04 |
| D257535 | Microfilm reader | Eino M. Lehto | 1980-11-18 |
| 4217039 | Microfiche viewer with rotatable base | Eino M. Lehto, Michael V. Polinsky | 1980-08-12 |