Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6796340 | Method and dispenser for pressurized containers used with automobile air conditioning systems | William J. Quest | 2004-09-28 |
| 6722141 | Apparatus and methods for placing an additive fluid into a refrigerant circuit | William J. Quest | 2004-04-20 |
| 6609385 | Refrigerant charging/pressure testing hose assembly | William J. Quest | 2003-08-26 |
| 6481221 | Apparatus and methods for placing an additive fluid into a refrigerant circuit | William J. Quest | 2002-11-19 |
| 6438970 | Apparatus methods and compositions for placing additive fluids into a refrigerant circuit | William J. Quest | 2002-08-27 |
| 6385986 | Refrigerant charging hose assembly | William J. Quest | 2002-05-14 |
| 5967204 | Refrigerant fluid injection apparatus | William J. Quest | 1999-10-19 |
| 5070917 | Pressurized fluid-drivable device for injecting a treatment liquid stored therein into a tire or other enclosed space | William J. Quest | 1991-12-10 |
| 4829829 | Air conditioner test gauge with pressure zone markings | — | 1989-05-16 |
| 4777828 | Removable, in-place refrigerant pressure check gauge | — | 1988-10-18 |
| 4770044 | Air conditioner test gauge with pressure zone markings | — | 1988-09-13 |
| 4745772 | Air conditioner auxiliary filter/drier refrigerant and chemical additive transfer device | — | 1988-05-24 |
| 4693112 | Air conditioner refrigerant check gauge insert convertible to a tire check gauge | — | 1987-09-15 |
| 4599903 | Air conditioner refrigerant check guide | — | 1986-07-15 |
| 4224032 | Method and apparatus for chemical analysis | Clyde P. Glover, Robert J. Meyer, Edward Muka | 1980-09-23 |