Douglas A. Webb
28Patents
16h-index
34Co-inventors
81Inventor score
Filing activity: Oct 26, 1988 → Nov 11, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6161500A | Apparatus and method for preventing the premature mixture of reactant gases in CVD and PECVD reactions | Chemistry; Metallurgy | 739 | Expired |
| US6368987B1 | Apparatus and method for preventing the premature mixture of reactant gases in CVD and PECVD reactions | Chemistry; Metallurgy | 571 | Expired |
| US5002632A | Method and apparatus for etching semiconductor materials | Electricity | 433 | Expired |
| US5610438A | Micro-mechanical device with non-evaporable getter | Physics | 308 | Expired |
| US4894352A | Deposition of silicon-containing films using organosilicon compounds and nitrogen trifluoride | Emerging Cross-Sectional Technologies | 261 | Expired |
| US5523878A | Self-assembled monolayer coating for micro-mechanical devices | Physics | 169 | Expired |
| US5504614A | Method for fabricating a DMD spatial light modulator with a hardened hinge | Emerging Cross-Sectional Technologies | 128 | Expired |
| US5512374A | PFPE coatings for micro-mechanical devices | Emerging Cross-Sectional Technologies | 120 | Expired |
| US5447600A | Polymeric coatings for micromechanical devices | Performing Operations; Transporting | 95 | Expired |
| US7247832B2 | Signal processing circuit and method using analog voltage signal to pulse width modulation conversion | Physics | 77 | Expired |
| US5739941A | Non-linear hinge for micro-mechanical device | Physics | 50 | Expired |
| US5906866A | Process for chemical vapor deposition of tungsten onto a titanium nitride substrate surface | Electricity | 46 | Expired |
| US6093645A | Elimination of titanium nitride film deposition in tungsten plug technology using PE-CVD-TI and in-situ plasma nitridation | Electricity | 29 | Expired |
| US5986581A | Programmable infrared marker (PIRM) | Performing Operations; Transporting | 25 | Expired |
| US5768007A | Phase matched reset for digital micro-mirror device | Electricity | 23 | Expired |
| US5386962A | Shock and vibration absorbing mounts | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US7250893B2 | Signal processing circuit and method for use with an optical navigation system | Electricity | 14 | Expired |
| US6936869B2 | Heterojunction field effect transistors using silicon-germanium and silicon-carbon alloys | Electricity | 11 | Expired |
| US6967718B1 | Method and apparatus for monitoring WDM channels and for analyzing dispersed spectrum of light | Physics | 9 | Expired |
| US6271121A | Process for chemical vapor deposition of tungsten onto a titanium nitride substrate surface | Electricity | 6 | Expired |
| US7161518B1 | Method and apparatus for driving two-dimensional modulator arrays | Physics | 5 | Expired |
| US7053930B2 | Triangular bidirectional scan method for projection display | Physics | 4 | Expired |
| US7405389B2 | Dense multi-axis array for motion sensing | Physics | 3 | Active |
| US6781739B1 | High-frequency AC drive for MEM devices | Physics | 2 | Expired |
| US6967758B2 | System and method for sub-pixel electronic alignment | Electricity | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.