Thomas O'Brien
17Patents
7h-index
22Co-inventors
66Inventor score
Filing activity: Feb 19, 1980 → Jun 29, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4268406A | Liquid detergent composition | Chemistry; Metallurgy | 64 | Expired |
| US6889339B1 | Automated DSL network testing software tool | Electricity | 16 | Expired |
| US4592083A | High speed x-ray shutter | Physics | 15 | Expired |
| US4639081A | Gimballed three-dimensional display system | Physics | 15 | Expired |
| US4679221A | CT X-ray collimator including a reinforced collimator blade assembly | Physics | 11 | Expired |
| US5985804A | Bioresistant surfactants and cutting oil formulations | Chemistry; Metallurgy | 10 | Expired |
| US4747665A | Method for displaying three-dimensional images using composite driving waveforms | Emerging Cross-Sectional Technologies | 8 | Expired |
| USD818992S1 | Loudspeaker | General | 6 | Active |
| US9417145B2 | Cap analysis technique | Physics | 5 | Active |
| US4743748A | Three-dimensional display system with a feedback control loop sensitive to the instantaneous positioning of a flexible mirror membrane | Physics | 5 | Expired |
| USD1010598S1 | Loudspeaker | General | 2 | Active |
| US11743651B2 | Loudspeaker diaphragm | Electricity | 0 | Active |
| US10390141B2 | Loudspeaker diaphragm | Electricity | 0 | Active |
| US11395069B2 | Loudspeaker diaphragm | Electricity | 0 | Active |
| US10812909B2 | Loudspeaker diaphragm | Electricity | 0 | Active |
| US10547949B2 | Loudspeaker diaphragm | Electricity | 0 | Active |
| US7363529B1 | Automated DSL network testing software tool | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.