Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8312948 | Dual mechanical brake release for electric drive system | Ryan Allen Carrington | 2012-11-20 |
| 7591275 | Handle body for an adjustable multi-purpose crutch | — | 2009-09-22 |
| 7588044 | Foot assembly for a walking aid | — | 2009-09-15 |
| 7537017 | Shoulder support assembly for an adjustable multi-purpose crutch | — | 2009-05-26 |
| 7487788 | Handle assembly for an adjustable multi-purpose crutch | — | 2009-02-10 |
| 6874598 | Ergonomically improved tripod stepladder | — | 2005-04-05 |
| 6373676 | Magnetic floatation control system | John J. Robinson, Andrew Artimovich | 2002-04-16 |
| 6023793 | Swimming pool gutter including a wall covering fastened thereto | — | 2000-02-15 |
| 5978979 | Swimming pool gutter having a wall covering fastened thereto | — | 1999-11-09 |
| 5930850 | Swimming pool skimming gutter having a closed gutter conduit and water-spray tube therein | — | 1999-08-03 |
| 5704398 | Valve linkage system | — | 1998-01-06 |
| 5678253 | Adjustable pool flooring structure | — | 1997-10-21 |
| 5570521 | Control system for a grain dryer and probe mounting apparatus therefor | Raymond G. Benson, Jr., Brent J. Bloemendaal, Phong B. Chau, John J. Robinson | 1996-11-05 |
| 5425145 | Modular perimeter skimming gutter unit for swimming pools with exposed exterior longitudinal welds | — | 1995-06-20 |
| 5192141 | Multi-dimensional media printer with media based registration and free edge printing | T. Mark Chung, Anthony Garrett Orchard, Charles L. Bradford | 1993-03-09 |
| 4997558 | Suction control filter system for swimming pools | — | 1991-03-05 |
| 4962285 | Electrically groundable swimming pool deck anchor of plastic material | — | 1990-10-09 |
| 4887762 | Solder coating processes | — | 1989-12-19 |
| 4758292 | Method of making a modular welded perimeter skimming gutter for swimming pools | — | 1988-07-19 |
| 4754845 | Step ladder | — | 1988-07-05 |
| 4627118 | Vacuum filter for swimming pools controlling water recirculation capacity to accommodate varying gutter flow | — | 1986-12-09 |
| 4542544 | Modular welded perimeter skimming gutter for swimming pools | — | 1985-09-24 |
| 4389739 | Automated surge weir and rim skimming gutter flow control system | — | 1983-06-28 |
| 4276661 | Wave-making apparatus | — | 1981-07-07 |
| 4276664 | Apparatus for wave-making | — | 1981-07-07 |