Darwin C. Olson
19Patents
12h-index
9Co-inventors
67Inventor score
Filing activity: Dec 31, 1991 → Apr 27, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5230539A | Quick connect tube coupling | Mechanical Engineering; Lighting; Heating | 87 | Expired |
| US6386596B1 | Quick-connect hose end couplings | Emerging Cross-Sectional Technologies | 68 | Expired |
| US5468028A | Quick connect tube couplings | Mechanical Engineering; Lighting; Heating | 48 | Expired |
| US5474336A | Quick connect tube couplings | Mechanical Engineering; Lighting; Heating | 46 | Expired |
| US5681061A | Quick connect tube couplings | Mechanical Engineering; Lighting; Heating | 36 | Expired |
| US5511830A | Quick connect tube couplings | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US6302451A | Quick-connect hose end couplings | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5673945A | Quick connect tube couplings | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US5918913A | Quick-connect coupling for articulating hose lines | Performing Operations; Transporting | 18 | Expired |
| US8025318B1 | Push to connect fitting with formed gripper teeth | Mechanical Engineering; Lighting; Heating | 17 | Active |
| US5429394A | Quick connect cartridge assembly with plug | Emerging Cross-Sectional Technologies | 17 | Expired |
| US6224117A | Contaminant resistant tube fitting | Emerging Cross-Sectional Technologies | 13 | Expired |
| US7434847B2 | Quick connect tube coupling | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US5636662A | Quick connect cartridge assembly with plug | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6447024B1 | Spring retainer clip for a quick-connect coupling | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5984138A | Tanks with flow drill bushings for receiving couplings | Performing Operations; Transporting | 6 | Expired |
| US7681927B2 | Low pressure fitting | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US7192062B2 | Quick connect cartridge assembly with plug | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US6854771B1 | Low pressure fitting | Mechanical Engineering; Lighting; Heating | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.