Douglas B. Dobbs
28Patents
16h-index
17Co-inventors
78Inventor score
Filing activity: Jul 11, 1986 → Apr 30, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4706888A | Multi-purpose nozzle assembly | Performing Operations; Transporting | 76 | Expired |
| US5702058A | Dual foamer nozzle assembly for trigger sprayer | Performing Operations; Transporting | 65 | Expired |
| US5535950A | Dual trigger sprayer | Performing Operations; Transporting | 50 | Expired |
| US6186364A | Dosage control for dispenser with child-resistant feature | Performing Operations; Transporting | 46 | Expired |
| US4747523A | Manually actuated dispensing pump | Performing Operations; Transporting | 40 | Expired |
| USD455960S1 | Pushbutton dispenser head | General | 35 | Expired |
| US4971227A | Manually actuated dispensing pump sprayer having a removable nozzle locking element | Performing Operations; Transporting | 26 | Expired |
| US6729500B1 | Twirling dip tube | Performing Operations; Transporting | 25 | Expired |
| US6702157B1 | Self-aligning pump assembly | Performing Operations; Transporting | 23 | Expired |
| US5522547A | Sprayer having pressure build-up discharge | Performing Operations; Transporting | 22 | Expired |
| US5040702A | Manually actuated dispensing pump sprayer having a removable nozzle locking element | Performing Operations; Transporting | 20 | Expired |
| US5685445A | Anti-backoff removable closure for connecting a manually actuated liquid dispenser to a container | Performing Operations; Transporting | 20 | Expired |
| US5647539A | Foamer nozzle assembly for trigger sprayer | Performing Operations; Transporting | 17 | Expired |
| USD488380S1 | Pushbutton dispenser head and closure | General | 17 | Expired |
| US5678765A | Foam/spray nozzle assembly for trigger sprayer | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5785208A | Precompression pump sprayer having suck-back feature | Performing Operations; Transporting | 16 | Expired |
| US6953297B2 | Liquid dispenser and cleaner | Performing Operations; Transporting | 14 | Expired |
| US5657907A | Orifice cover slide for trigger sprayer | Performing Operations; Transporting | 14 | Expired |
| US5040701A | Manually actuated dispensing pump sprayer having a removable nozzle locking element | Performing Operations; Transporting | 13 | Expired |
| US5779108A | Pressure venting trigger sprayer | Performing Operations; Transporting | 13 | Expired |
| US6793156B2 | Orifice cup for manually actuated sprayer | Performing Operations; Transporting | 9 | Expired |
| US5507418A | Fluid dispenser with interference fit gasket | Performing Operations; Transporting | 9 | Expired |
| US9598225B2 | Child resistant pumps | Performing Operations; Transporting | 7 | Active |
| US7870977B2 | Dispenser having an improved inlet valve | Performing Operations; Transporting | 7 | Active |
| US7654419B2 | Dispenser having elastomer discharge valve | Performing Operations; Transporting | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.