Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679838 | Prevention of or reduction in the formation of amines and N-nitrosamines during the manufacture and use of elastomers | Gunter Stein | 1997-10-21 |
| 5658990 | Prevention of or reduction in the formation of amines and N-nitrosamines during the manufacture and use of elastomers | Gunter Stein | 1997-08-19 |
| 5630980 | Process of making a seal with grooved surface | G unter Stein | 1997-05-20 |