Douglas Clark
32Patents
10h-index
33Co-inventors
75Inventor score
Filing activity: Sep 29, 1982 → May 4, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7180008B2 | Tamper barrier for electronic device | Emerging Cross-Sectional Technologies | 84 | Expired |
| US6996953B2 | System and method for installing a tamper barrier wrap in a PCB assembly, including a PCB assembly having improved heat sinking | Electricity | 76 | Expired |
| US7475474B2 | Method of making tamper detection circuit for an electronic device | Emerging Cross-Sectional Technologies | 69 | Active |
| US7156233B2 | Tamper barrier enclosure with corner protection | Emerging Cross-Sectional Technologies | 67 | Expired |
| US6895509B1 | Tamper detection system for securing data | Emerging Cross-Sectional Technologies | 56 | Expired |
| US9685099B2 | System for characterizing manual welding operations | Physics | 48 | Active |
| USD738192S1 | Escutcheon | General | 25 | Active |
| US9773429B2 | System and method for manual welder training | Physics | 24 | Active |
| US4646999A | Support for mounting grooming items on the outside of cans containing grooming products | Human Necessities | 13 | Expired |
| USD966070S1 | Door lock | General | 12 | Active |
| US6311411A | Vertical dryer with vertical particle removal plenum and method of use | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US6188753A | Method and apparatus for detection and prevention of calling card fraud | Electricity | 9 | Expired |
| USD966071S1 | Door lock set | General | 6 | Active |
| USD981206S1 | Door lock set | General | 4 | Active |
| US10068495B2 | System for characterizing manual welding operations | Physics | 4 | Active |
| US8881637B2 | Door lock access control component mounting | Emerging Cross-Sectional Technologies | 4 | Active |
| USD966072S1 | Door lock | General | 4 | Active |
| US7046133B2 | Brake light circuit for engine retarder | Performing Operations; Transporting | 3 | Expired |
| US12077985B2 | Door lock assembly with waggle reduction | Fixed Constructions | 3 | Active |
| USD966073S1 | Door lock | General | 3 | Active |
| US10475353B2 | System for characterizing manual welding operations on pipe and other curved structures | Performing Operations; Transporting | 2 | Active |
| US12084888B2 | Door lock assembly | Fixed Constructions | 1 | Active |
| US10522055B2 | System for characterizing manual welding operations | Physics | 1 | Active |
| US6611325B1 | Enhanced defect detection using surface scanning inspection tools | Physics | 1 | Expired |
| US11885161B2 | Door lock assembly including weatherization | Fixed Constructions | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.