David W. Allen
34Patents
14h-index
29Co-inventors
81Inventor score
Filing activity: Apr 14, 1975 → Nov 18, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6047774A | System for drilling and completing multilateral wells | Fixed Constructions | 141 | Expired |
| US5489080A | Adjustable extender for a vehicle exterior side mirror | Performing Operations; Transporting | 60 | Expired |
| US4750053A | Method and system for enabling television commerical monitoring using a marking signal superimposed over an audio signal | Emerging Cross-Sectional Technologies | 60 | Expired |
| US8542326B2 | 3D shutter glasses for use with LCD displays | Electricity | 41 | Active |
| US4505811A | Mineral processing apparatus | Emerging Cross-Sectional Technologies | 32 | Expired |
| US4034291A | Electronic measuring instrument combining an oscilloscope and a digital multimeter | Physics | 31 | Expired |
| US5037536A | Vibratory conveying and separating apparatus and related clamping device | Performing Operations; Transporting | 30 | Expired |
| US4141345A | Cervical dilation measurement instruments | Physics | 27 | Expired |
| US5325192A | Ambient light filter for infrared linked stereoscopic glasses | Electricity | 23 | Expired |
| US4737360A | Skin care compositions | Human Necessities | 22 | Expired |
| US7628507B2 | Radiance output and temperature controlled LED radiance source | Physics | 18 | Active |
| US8233103B2 | System for controlling the operation of a pair of 3D glasses having left and right liquid crystal viewing shutters | Electricity | 18 | Active |
| US6085465A | Strike plate for a door assembly | Emerging Cross-Sectional Technologies | 17 | Expired |
| US6679004B1 | Decorative cover for retrofit door reinforcement plate | Fixed Constructions | 16 | Expired |
| US5032188A | Method for paint brush preservation and storage | Performing Operations; Transporting | 14 | Expired |
| US6185881A | Method and apparatus for reinforcing a door assembly | Fixed Constructions | 14 | Expired |
| US6342945B1 | System and method for measuring polarization mode dispersion suitable for a production environment | Physics | 14 | Expired |
| US7134246B1 | Method and apparatus for reinforcing a door assembly | Fixed Constructions | 13 | Expired |
| US4967903A | Used paint brush preservation device | Performing Operations; Transporting | 13 | Expired |
| USD301731S | Hydro-therapy fitting | General | 11 | Expired |
| US6901706B2 | Door hardware interconnected with overlying reinforcement plate | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7853404B2 | Vehicle docking station for portable handheld computing device | Physics | 7 | Expired |
| US5739731A | Self-tuning resonant cavity filter | Electricity | 7 | Expired |
| US4630024A | Grid resistor and improved grid element therefor | Electricity | 7 | Expired |
| US5157373A | Post glover resistor | Electricity | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.