Hughey & Phillips, LLC
16Patents
12Active
16Granted
46Portfolio score
Filing activity: Dec 12, 1977 → Nov 12, 2018
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5556189A | Omni-directional airport taxiway light and fixture | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US9016896B1 | Obstruction lighting system | Emerging Cross-Sectional Technologies | 17 | Active |
| US5747798A | Photocell checker | Electricity | 11 | Expired |
| US9010969B2 | Lighting system | Emerging Cross-Sectional Technologies | 10 | Active |
| US9013331B2 | Lighting and collision alerting system | Emerging Cross-Sectional Technologies | 9 | Active |
| US9572223B1 | Precision color-controlled light source | Electricity | 7 | Active |
| US4138627A | Current-level-sensitive switching system | Electricity | 7 | Expired |
| US5530634A | Electromagnetic interference suppressor and methods | Electricity | 5 | Expired |
| US9702525B1 | Obstruction lighting system | Emerging Cross-Sectional Technologies | 4 | Active |
| US10532824B2 | Obstruction lighting system configured to emit visible and infrared light | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US9694914B2 | Lighting and collision alerting system | Emerging Cross-Sectional Technologies | 4 | Active |
| US9297514B2 | Lighting system | Emerging Cross-Sectional Technologies | 4 | Active |
| US10124910B2 | Lighting and collision alerting system | Emerging Cross-Sectional Technologies | 3 | Active |
| US10106276B2 | Obstruction lighting system configured to emit visible and infrared light | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US11178741B1 | Lighting system configured to emit visible and infrared light | Physics | 0 | Active |
| US10532826B2 | Lighting and collision alerting system | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.