Duane D. Nowlin
6Patents
6h-index
8Co-inventors
52Inventor score
Filing activity: Jan 26, 1978 → Feb 28, 1995
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4347224A | Chemical dispenser | Performing Operations; Transporting | 37 | Expired |
| US4332685A | Method and apparatus for treating water | Performing Operations; Transporting | 32 | Expired |
| US4722797A | Method for regeneration of a water softener | Performing Operations; Transporting | 15 | Expired |
| USD309342S | Electronic indicator faucet | General | 11 | Expired |
| US5464532A | Water softener with resin beads of different mesh sizes | Chemistry; Metallurgy | 10 | Expired |
| US4599047A | Chemical feed pump flow indicator | Physics | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.