Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5387191 | Flushing needle | George P. Hemstreet, Karl H. Bergey | 1995-02-07 |
| 5263293 | Expansion joint fire barrier systems | Henry J. Gohlke, Loren W. Keely, Michael D. Wilson | 1993-11-23 |
| 5140797 | Expansion joint fire barrier systems | Henry J. Gohlke, Loren W. Keely, Michael D. Wilson | 1992-08-25 |
| 5081999 | Biosample aspirator | George P. Hemstreet, Karl H. Bergey | 1992-01-21 |
| 4999962 | Expansion joint fire barrier systems | Henry J. Gohlke, Loren W. Keely, Michael D. Wilson | 1991-03-19 |
| 4982739 | Biosample aspirator | George P. Hemstreet, Karl H. Bergey | 1991-01-08 |