David P. Ward
16Patents
5h-index
22Co-inventors
66Inventor score
Filing activity: Mar 20, 1989 → Mar 7, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6556565B1 | Internet protocol (IP) telecommunication | Electricity | 20 | Expired |
| US5649005A | PC with telephony exchange function | Electricity | 19 | Expired |
| US5103852A | Safety system for pressurized transfer installations | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5372160A | Apparatus for dividing flows of volatile fluids such as agricultural ammonia used as fertilizer | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4900339A | Ammonia flow divider | Performing Operations; Transporting | 8 | Expired |
| US8151667B2 | Steering column assembly | Performing Operations; Transporting | 5 | Active |
| US11058605B2 | Sterilization fluid path with barrier removal | Human Necessities | 4 | Active |
| US9085320B2 | Steering column assembly | Performing Operations; Transporting | 3 | Active |
| US8631828B1 | Anhydrous ammonia flow dividing manifold | Emerging Cross-Sectional Technologies | 3 | Active |
| US5176162A | Predetermined separation fitting | Emerging Cross-Sectional Technologies | 3 | Expired |
| US8316229B2 | Secure certificate installation on IP clients | Electricity | 2 | Active |
| US9901027B1 | Anhydrous ammonia vapor charge unit for an applicator tank | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US6123100A | Ammonia excess flow valve | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7686336B2 | Steering column assembly | Performing Operations; Transporting | 2 | Active |
| US7913443B2 | Audible fishing weight | Human Necessities | 2 | Active |
| US7975724B2 | Hose bend bleeder for ammonia application system | Emerging Cross-Sectional Technologies | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.