Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5201672 | Corrosion protection apparatus | Glen W. Ragland, William H. Humphries, Lowell I. Koht, William D. Uken | 1993-04-13 |
| 5085597 | Corrosion protection apparatus | Glen W. Ragland, William H. Humphries, Lowell I. Koht, William D. Uken | 1992-02-04 |
| 4701574 | Cable sealing apparatus | Gerlad L. Shimirak, Thomas B. Hunter, W. G. Halstead, Paul S. Chan, Christopher J. Swinmurn | 1987-10-20 |