Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11149395 | Cellular sheet pile retaining systems with unconnected tail walls, and associated methods of use | William Dennis Nottingham, William Gunderson | 2021-10-19 |
| 10024017 | Cellular sheet pile retaining systems with unconnected tail walls, and associated methods of use | William Dennis Nottingham, William Gunderson | 2018-07-17 |
| 9765966 | Ignition switch assembly | Richard R. Herzog | 2017-09-19 |
| 8173924 | Dual function switch assembly | Robert Tegel, Robert Dam, Richard D. Gjerde, Richard R. Herzog, David Nowak +3 more | 2012-05-08 |
| 5813899 | Game call and method | — | 1998-09-29 |
| 5096158 | Oil drain valve assembly | Douglas R. Burdick, Frank V. Pliml, Jr. | 1992-03-17 |
| 4819176 | Process control and data collection system | Belal Ahmed, Andrew Eisner, Harold Foodman, G. Cecil Hartley, Robert Jackson Marsh | 1989-04-04 |