H.E. Williams, Inc.
5Patents
0Active
5Granted
26Portfolio score
Filing activity: Jul 15, 1985 → Sep 24, 2002
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5904415A | Fluorescent bulb connector assembly | Emerging Cross-Sectional Technologies | 121 | Expired |
| US6565238B1 | Fluorescent light fixture with lateral ballast | Mechanical Engineering; Lighting; Heating | 28 | Expired |
| US4630181A | Fluorescent lighting fixture | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US6767116B2 | Lighting fixture assembly | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US5678922A | Lighting fixture and anodized metallic louver system therefor | Mechanical Engineering; Lighting; Heating | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.