Roy D. Roberts
39Patents
17h-index
15Co-inventors
78Inventor score
Filing activity: Aug 27, 1975 → Jan 26, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4633128A | Short arc lamp with improved thermal characteristics | Electricity | 52 | Expired |
| US6181053A | Three-kilowatt xenon arc lamp | Electricity | 43 | Expired |
| US5561338A | Packaged arc lamp and cooling assembly in a plug-in module | Electricity | 34 | Expired |
| US4599540A | High intensity arc lamp | Electricity | 29 | Expired |
| US6200005A | Xenon ceramic lamp with integrated compound reflectors | Electricity | 27 | Expired |
| US5721465A | Xenon arc lamp with improved reflector cooling | Electricity | 26 | Expired |
| USD377234S | Lamp holder | General | 26 | Expired |
| US5418420A | Arc lamp with a triplet reflector including a concave parabolic surface, a concave elliptical surface and a convex parabolic surface | Electricity | 26 | Expired |
| US5672931A | Arc lamp filter with heat transfer attachment to a radial arc lamp cathode heat sink | Electricity | 25 | Expired |
| US5399931A | Two kilowatt short arc lamp having a metal heat-transfer pad | Electricity | 24 | Expired |
| US6351058B1 | Xenon ceramic lamp with integrated compound reflectors | Electricity | 22 | Expired |
| US5299279A | Short arc lamp soldering device | Performing Operations; Transporting | 21 | Expired |
| US4195745A | Thermally sensitive pressure release assembly for sealed pressurized vessel | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4785216A | High powered water cooled xenon short arc lamp | Electricity | 21 | Expired |
| US4658179A | Arc lamp for one-step brazing | Electricity | 21 | Expired |
| US6316867A | Xenon arc lamp | Electricity | 18 | Expired |
| US6285131A | Manufacturing improvement for xenon arc lamp | Electricity | 18 | Expired |
| US6597087B2 | Miniature xenon ARC lamp with cathode slot-mounted to strut | Electricity | 16 | Expired |
| US6034467A | Compact heat sinks for cooling arc lamps | Electricity | 16 | Expired |
| USD377104S | Lamp with heat sink | General | 16 | Expired |
| US4437417A | Environmentally safe process for disposing of toxic inorganic CN-containing sludge | Emerging Cross-Sectional Technologies | 15 | Expired |
| US10109473B1 | Mechanically sealed tube for laser sustained plasma lamp and production method for same | Electricity | 14 | Active |
| US4702716A | Method for assembling arc lamp | Electricity | 14 | Expired |
| US4940922A | Integral reflector flashlamp | Electricity | 12 | Expired |
| US6602104B1 | Simplified miniature xenon arc lamp | Electricity | 12 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.