Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8092265 | Jet propulsion device | — | 2012-01-10 |
| 7445532 | Safe efficient outboard motor assembly | — | 2008-11-04 |
| 7264519 | Safe efficient outboard motor assembly | — | 2007-09-04 |
| 6575109 | Thruster screen | — | 2003-06-10 |
| 6152793 | Screen system for marine thrusters | — | 2000-11-28 |
| 5915324 | Screen system for marine thrusters | — | 1999-06-29 |
| 5666012 | Rotating shaft seal | — | 1997-09-09 |
| 5275535 | Ortho skew propeller blade | — | 1994-01-04 |
| 5176094 | Watercraft propulsion system | — | 1993-01-05 |
| 5127857 | Watercraft propulsion system | — | 1992-07-07 |
| 5072579 | Marine vessel thruster | — | 1991-12-17 |
| 4925185 | Exercise method | Robert C. Gongwer | 1990-05-15 |
| 4919066 | Hydrodynamic configuration for underwater vehicle | — | 1990-04-24 |
| 4887540 | Watercraft propulsion system | — | 1989-12-19 |
| 4834364 | Exercise pole with cross members | Robert C. Gongwer | 1989-05-30 |
| 4735045 | Limited discharge bidirectional thruster and method of operation | — | 1988-04-05 |
| 4726183 | Self retracting screens for turbomachinery | — | 1988-02-23 |
| 4709358 | Bridle configuration for towed underwater vehicle | James Appling | 1987-11-24 |
| 4688994 | Watercraft propulsion device | — | 1987-08-25 |
| 4681259 | Rotary drive sprinkler | Edward M. Troup, Giles A. Kendall, Joseph Han, Christopher Moralez | 1987-07-21 |
| 4672807 | Wall thruster and method of operation | — | 1987-06-16 |
| 4571192 | Self propelled spherical vehicle | — | 1986-02-18 |
| 4455962 | Spherical underwater vehicle | — | 1984-06-26 |
| 4424042 | Propulsion system for an underwater vehicle | — | 1984-01-03 |
| 4377982 | Spherical vehicle for operation in a fluid medium | — | 1983-03-29 |