Phillip Johnson
25Patents
8h-index
17Co-inventors
72Inventor score
Filing activity: Apr 12, 1979 → Oct 7, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7009433B2 | Digitally controlled delay cells | Electricity | 24 | Expired |
| US4253166A | Target location systems | Physics | 19 | Expired |
| US4470564A | Tug | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6970047B1 | Programmable lock detector and corrector | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4330876A | Sonar systems | Physics | 13 | Expired |
| US7535258B1 | Programmable current output and common-mode voltage buffer | Electricity | 12 | Active |
| US5549495A | Side entry life vest | Performing Operations; Transporting | 9 | Expired |
| US7215148B1 | Programmable current output buffer | Electricity | 9 | Expired |
| US4245220A | Target location systems | Physics | 8 | Expired |
| US7132903B1 | Noise-shielding, switch-controlled load circuitry for oscillators and the like | Electricity | 7 | Expired |
| US8164499B1 | Shared-array multiple-output digital-to-analog converter | Electricity | 7 | Active |
| US7007313B1 | Toilet protector | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7620839B2 | Jitter tolerant delay-locked loop circuit | Physics | 4 | Active |
| US7599457B2 | Clock-and-data-recovery system having a multi-phase clock generator for one or more channel circuits | Electricity | 4 | Active |
| US4433396A | Sonar receivers | Physics | 4 | Expired |
| US7091763B1 | Clock generation | Electricity | 4 | Expired |
| US10819318B1 | Single event upset immune flip-flop utilizing a small-area highly resistive element | Electricity | 3 | Active |
| USD369066S | Combined paper plate and napkin holder | General | 2 | Expired |
| US8648636B2 | Delaying data signals | Electricity | 1 | Active |
| US7253674B1 | Output clock phase-alignment circuit | Physics | 1 | Expired |
| US7616029B1 | Hysteresis-based processing for applications such as signal bias monitors | Electricity | 1 | Active |
| US7521969B2 | Switch sequencing circuit systems and methods | Electricity | 0 | Active |
| US8441292B1 | Delaying data signals | Electricity | 0 | Active |
| US7586344B1 | Dynamic delay or advance adjustment of oscillating signal phase | Electricity | 0 | Active |
| US8531222B1 | Phase locked loop circuit with selectable feedback paths | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.