Harold E. Hager
17Patents
8h-index
22Co-inventors
72Inventor score
Filing activity: Aug 30, 1982 → Jan 29, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4895017A | Apparatus and method for early detection and identification of dilute chemical vapors | Physics | 109 | Expired |
| US5896481A | Optical subassembly with a groove for aligning an optical device with an optical fiber | Physics | 57 | Expired |
| US4783987A | System for sustaining and monitoring the oscillation of piezoelectric elements exposed to energy-absorptive media | Physics | 47 | Expired |
| US6077885A | Chromate-free protective coatings | Chemistry; Metallurgy | 33 | Expired |
| US5866652A | Chromate-free protective coatings | Chemistry; Metallurgy | 27 | Expired |
| US9513606B1 | Safety systems and methods for production environments | Physics | 24 | Active |
| US4495793A | Sensing device for detecting the presence of a gas contained in a mixture thereof | Physics | 17 | Expired |
| US5126803A | Broadband quantum well LED | Electricity | 15 | Expired |
| US9546338B2 | Redox couple-based mitigation of fluid-flow-driven electrochemical surface degradation | Chemistry; Metallurgy | 3 | Active |
| US8212217B2 | Silicon surface state detectors and detector arrays | Emerging Cross-Sectional Technologies | 2 | Active |
| US7684043B2 | System and method for remote, free-space optical detection of potential threat agent | Physics | 2 | Active |
| US7894418B2 | Mixed analog and digital chip-scale reconfigurable WDM network | Emerging Cross-Sectional Technologies | 2 | Active |
| US7709779B2 | Method and apparatus for detecting an optical reflection indicative of a photodiode | Physics | 1 | Active |
| US10425706B2 | WDM router | Emerging Cross-Sectional Technologies | 1 | Active |
| US9650586B2 | Redox couple-based mitigation of fluid-flow-driven electrochemical surface degradation | Chemistry; Metallurgy | 0 | Active |
| US7400394B2 | Co-deployed optical referencing for responsive dust-based sensing system | Physics | 0 | Expired |
| US8968896B1 | Mitigation of internal shorting for improved battery safety | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.