Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D307869 | Laboratory flask holder | — | 1990-05-15 |
| D297120 | Stopper for a bottle or the like | — | 1988-08-09 |
| D296241 | Laboratory glass joint | — | 1988-06-14 |
| D294969 | Combined locking and unlocking nut for ground jointed glassware | — | 1988-03-29 |
| D289378 | Combined reusable extractor-stopper for laboratory glassware | — | 1987-04-21 |
| 4582444 | Locking and unlocking laboratory joints | — | 1986-04-15 |
| D280080 | Reusable extractor-stopper for laboratory glassware | — | 1985-08-13 |
| 4394921 | Glassware stopper with venting valve | — | 1983-07-26 |
| 4395382 | Glassware stopcock with freeze extractor | — | 1983-07-26 |
| 4391779 | Teflon ground glass adaptor | — | 1983-07-05 |
| 4390500 | Rotary evaporator shaft | — | 1983-06-28 |