David L. Speirs
35Patents
6h-index
38Co-inventors
69Inventor score
Filing activity: Sep 23, 1992 → May 10, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5236634A | Carburetor needle valve adjustment limiter cap and method of adjusting fuel flow | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5322645A | Carburetor needle valve adjustment limiter cap and method of use | Emerging Cross-Sectional Technologies | 26 | Expired |
| US11073122B2 | Low pressure fuel and air charge forming device for a combustion engine | Mechanical Engineering; Lighting; Heating | 14 | Active |
| US6402124B1 | Carburetor fuel mixture adjustment assembly | Emerging Cross-Sectional Technologies | 14 | Expired |
| US7264230B2 | Carburetor and solenoid assemblies and methods of assembling the same | Emerging Cross-Sectional Technologies | 8 | Expired |
| US8939736B2 | Fuel pump assembly | Emerging Cross-Sectional Technologies | 7 | Active |
| US8933691B2 | Rotary position sensor | Physics | 3 | Active |
| US11008951B2 | Low pressure fuel injection system for a multi-cylinder light-duty internal combustion engine | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US9217403B1 | Level sensor mount | Emerging Cross-Sectional Technologies | 3 | Active |
| US9371786B2 | Fuel injected engine system | Emerging Cross-Sectional Technologies | 2 | Active |
| US9765724B2 | Fuel injected engine system | Emerging Cross-Sectional Technologies | 2 | Active |
| US10549631B2 | Fuel pump assembly with removable and/or movable supports | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US7827970B2 | Vapor separator | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US9567944B2 | Layered diaphragm | Emerging Cross-Sectional Technologies | 2 | Active |
| US9464577B2 | Rotary position sensor with buffer | Physics | 1 | Active |
| US10259313B2 | Fuel pump assembly with removable supports | Performing Operations; Transporting | 1 | Active |
| US8061322B2 | Engine starting system with throttle override | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US9553440B2 | Wire seal assembly | Electricity | 1 | Active |
| US10125696B2 | Charge forming device with throttle valve adjuster | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US6715738B1 | Fuel-air mixture control apparatus | Emerging Cross-Sectional Technologies | 1 | Expired |
| US8988995B2 | Network traffic management | Electricity | 1 | Active |
| US10001095B2 | Retainer with grounding feature for fuel system component | Electricity | 0 | Active |
| US11781493B2 | Throttle body with fluid flow control | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11920544B2 | Fuel supply device with injector and vapor management | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11927164B2 | Low pressure fuel and air charge forming device for a combustion engine | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.