Donald L. Williams
26Patents
12h-index
15Co-inventors
78Inventor score
Filing activity: Sep 9, 1974 → Jul 29, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5218862A | Tire pressure monitor | Performing Operations; Transporting | 57 | Expired |
| US4362265A | Container | Emerging Cross-Sectional Technologies | 55 | Expired |
| US4932451A | Vehicle wheel end assembly with air passage | Mechanical Engineering; Lighting; Heating | 38 | Expired |
| US3986634A | Torque limiter mechanism | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US4938272A | Valve actuator for tire pressure management | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4133346A | Pressure vacuum relief valve | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4539959A | Fuel injection system with fuel flow limiting valve assembly | Emerging Cross-Sectional Technologies | 26 | Expired |
| US5865398A | Multi-function engine air inlet control | Performing Operations; Transporting | 19 | Expired |
| US4359204A | Rod operated valve | Emerging Cross-Sectional Technologies | 16 | Expired |
| US3937358A | Pressure vacuum relief valve assembly | Performing Operations; Transporting | 16 | Expired |
| US4065026A | Compliant grooved sealing ring for threadably secured assembly | Performing Operations; Transporting | 15 | Expired |
| US5839511A | Blowout preventer wash-out tool | Fixed Constructions | 14 | Expired |
| US4382514A | Dispenser carton | Performing Operations; Transporting | 12 | Expired |
| US4373666A | Engine cooling-passenger heating system | Performing Operations; Transporting | 12 | Expired |
| US7258165B1 | Hole opener and drillable casing guide and methods of use | Fixed Constructions | 10 | Expired |
| US4360163A | Electromagnetic diesel fuel injector | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4724803A | Rolling contact rocker arm with reaction member, rocker key and roller follower | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4729158A | Tool for aiding the assembly of drill stabilizer to the drill collar when up the bottom hole assembly | Emerging Cross-Sectional Technologies | 5 | Expired |
| US9404321B2 | Oilfield lift cap and combination tools | Fixed Constructions | 4 | Active |
| USD417842S | Spouted container | General | 3 | Expired |
| US9404341B2 | Release tool for a drill string inside blowout preventer | Fixed Constructions | 2 | Active |
| US12022989B2 | Nozzle for a surface treatment apparatus and a surface treatment apparatus having the same | Human Necessities | 0 | Active |
| US10118749B1 | Tooth powder container system | Performing Operations; Transporting | 0 | Active |
| US11832778B2 | Nozzle for a surface treatment apparatus and a surface treatment apparatus having the same | Human Necessities | 0 | Active |
| US10012040B2 | Methods of using oilfield lift caps and combination tools | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.