Francis E. Ryder
109Patents
27h-index
15Co-inventors
87Inventor score
Filing activity: Sep 30, 1974 → Apr 24, 1995
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4414975A | Blood lancet | Human Necessities | 216 | Expired |
| US4735203A | Retractable lancet | Human Necessities | 208 | Expired |
| US4770632A | Delivery system for dental treatment solution | Human Necessities | 158 | Expired |
| US4063556A | Vacuum curettage device | Human Necessities | 66 | Expired |
| US3991908A | Pill dispenser | Emerging Cross-Sectional Technologies | 64 | Expired |
| US4637919A | Lens disinfecting appliance with improved venting feature | Human Necessities | 62 | Expired |
| US5154325A | Solution delivery nozzle and system with antimicrobial features | Human Necessities | 60 | Expired |
| US5046192A | Headset sun visor | Electricity | 59 | Expired |
| US4807313A | Inflatable inclined mattress support system | Human Necessities | 58 | Expired |
| US4579823A | Sterilization indicator | Emerging Cross-Sectional Technologies | 57 | Expired |
| US4750610A | Lens case with pressure sensitive venting system | Emerging Cross-Sectional Technologies | 55 | Expired |
| US5277198A | Blood sampling syringe | Human Necessities | 54 | Expired |
| US5237893A | Driver with fastener retention means | Performing Operations; Transporting | 49 | Expired |
| US4807750A | Latching structure for contact lens holder | Emerging Cross-Sectional Technologies | 48 | Expired |
| US4146055A | Valve structure | Emerging Cross-Sectional Technologies | 45 | Expired |
| US4957436A | Dental pump system for chemical caries removal | Human Necessities | 44 | Expired |
| US4638807A | Headband electrode system | Human Necessities | 42 | Expired |
| US4802067A | Headlight aiming and leveling device | Performing Operations; Transporting | 41 | Expired |
| US4674018A | Headlamp adjusting mechanism | Mechanical Engineering; Lighting; Heating | 37 | Expired |
| US4939945A | Gearbox drive system with plastic output gear | Emerging Cross-Sectional Technologies | 36 | Expired |
| US4848023A | Fishing lure | Human Necessities | 33 | Expired |
| US4013410A | Contact lens sterilization process and apparatus | Emerging Cross-Sectional Technologies | 32 | Expired |
| US4331859A | Device for sterilizing false teeth | Human Necessities | 32 | Expired |
| US4922387A | Horizontal zero adjustment for automotive headlamp | Performing Operations; Transporting | 29 | Expired |
| US4330627A | Testing tray | Emerging Cross-Sectional Technologies | 28 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.