Donald E. Stephens
23Patents
13h-index
20Co-inventors
81Inventor score
Filing activity: Oct 7, 1974 → Aug 28, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5486134A | System and method for texturing magnetic data storage disks | Physics | 52 | Expired |
| US4518700A | Method and apparatus for regulating the temperature of an analytical instrument reactor | Emerging Cross-Sectional Technologies | 51 | Expired |
| US5875507A | Wafer cleaning apparatus | Emerging Cross-Sectional Technologies | 47 | Expired |
| US4438070A | Packed column thermal reactor for an analytical instrument | Physics | 35 | Expired |
| US5490809A | System and method for texturing magnetic data storage disks | Physics | 35 | Expired |
| US6625835B1 | Disk cascade scrubber | Emerging Cross-Sectional Technologies | 31 | Expired |
| US3950240A | Anode for electrolytic processes | Chemistry; Metallurgy | 29 | Expired |
| US4188464A | Bipolar electrode with intermediate graphite layer and polymeric layers | Chemistry; Metallurgy | 28 | Expired |
| US3941487A | Colorimetric fluid analyzer | Physics | 26 | Expired |
| US4534941A | Analytical instrument thermoelectric temperature regulator | Physics | 21 | Expired |
| US4294799A | Temperature regulating apparatus | Physics | 19 | Expired |
| US6625901B1 | Apparatus and method for drying a thin substrate | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4012296A | Electrode for electrolytic processes | Chemistry; Metallurgy | 13 | Expired |
| US6588043B1 | Wafer cascade scrubber | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6430841B1 | Apparatus for drying batches of wafers | Electricity | 13 | Expired |
| US6446355B1 | Disk drying apparatus and method | Electricity | 11 | Expired |
| US6345404B1 | Wafer cleaning apparatus | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6143089A | Method of cleaning semiconductor wafers and other substrates | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4372150A | Flow monitoring method and apparatus | Physics | 9 | Expired |
| US6615510B2 | Wafer drying apparatus and method | Electricity | 9 | Expired |
| US4926702A | Sample presence detector for automatic sample injector | Physics | 9 | Expired |
| US6477786B1 | Apparatus for drying batches of disks | Electricity | 8 | Expired |
| US3969217A | Electrolytic anode | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.