Patents per Year
Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 10493384 | Filtration system | Tyler Hemker | 2019-12-03 | |
| 5948257 | Candle filter and method for making | Milton F. Custer | 1999-09-07 | $4,031,000 |
| 5881775 | Heat exchanger tube and method for making | Thomas K. Owen, James R. Watts, Milton F. Custer | 1999-03-16 | $3,855,000 |
| 5849375 | Candle filter | Robert Smith, Joseph H. Eaton, Edward M. Fischer, Larry R. Visser, Venecia M. Grobelny | 1998-12-15 | |
| 5780126 | Filter material | Robert Smith, Joseph H. Eaton, Edward M. Fischer, Larry R. Visser, Venecia M. Grobelny | 1998-07-14 |