Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5441235 | Titanium nitride coated valve and method for making | Sundaram L. Narasimhan, Flavio Rigamonti | 1995-08-15 |
| 4741080 | Process for providing valve members having varied microstructure | Jay M. Larson, Emory Z. Pankas, Charles E. Pennock, Michael A. Allibone, John D. Dingell, III +1 more | 1988-05-03 |