Robert Hahn
14Patents
6h-index
17Co-inventors
63Inventor score
Filing activity: Apr 7, 1988 → Jul 30, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4961304A | Cotton flow monitoring system for a cotton harvester | Emerging Cross-Sectional Technologies | 119 | Expired |
| US5934051A | Solid state mow system for electrically powered mower | Performing Operations; Transporting | 69 | Expired |
| US4852680A | Vehicle anti-theft system with remote security module | Performing Operations; Transporting | 51 | Expired |
| US5195612A | Lubrication system for a cotton harvester | Human Necessities | 12 | Expired |
| US7224088B2 | Mower responsive to backup sensor | Physics | 12 | Expired |
| US5032268A | Self-contained canister unit for filtering tap water | Chemistry; Metallurgy | 10 | Expired |
| US7582329B2 | Fuel cell system in the form of a printed circuit board | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4936985A | Self-contained canister unit for filtering tap water | General | 5 | Revoked |
| US7655342B2 | Proton-conducting polymer membrane and method for the production thereof to simultaneously remove the catalyst layers | Emerging Cross-Sectional Technologies | 3 | Expired |
| US8003244B2 | Battery, especially a microbattery, and the production thereof using wafer-level technology | Emerging Cross-Sectional Technologies | 3 | Active |
| US8808938B2 | Fuel cell system | Emerging Cross-Sectional Technologies | 1 | Active |
| US7041275B2 | Irrigating fluid | Human Necessities | 0 | Expired |
| US10087534B2 | Hydrogen evolution cell having a cathode pocket | Emerging Cross-Sectional Technologies | 0 | Active |
| US8293423B2 | Fuel cell stack with a lightweight construction | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.