Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4684106 | Valve | Terrence J. Kolenc, Carl R. Bork, Jr., Earl D. Shufflebarger, William P. Tobbe | 1987-08-04 |
| 4637430 | Check valve | Gary W. Scheffel, Richard J. Medvick | 1987-01-20 |
| 4634099 | High pressure inverted bellows valve | Oliver L. Danko, Carl R. Bork, Jr., Donald A. Levengood | 1987-01-06 |
| 4606374 | Valve | Terrence J. Kolenc, Carl R. Bork, Jr., Earl D. Shufflebarger, William P. Tobbe | 1986-08-19 |
| 4530373 | Pressure relief valve | Carl R. Bork, Jr., William P. Tobbe, Earl D. Shufflebarger, Stephen Matousek, Thomas J. Gardner | 1985-07-23 |
| 4262880 | Plug valve | Oliver L. Danko, William H. Amor, William P. Tobbe, Thomas J. Gardner, Earl D. Shufflebarger | 1981-04-21 |
| 4263140 | In-line fluid filter | Ronald J. Wujnovich, Earl D. Shufflebarger | 1981-04-21 |