Harold E. Bellis
30Patents
10h-index
28Co-inventors
75Inventor score
Filing activity: Dec 15, 1975 → Dec 31, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4986353A | Placement process for oil field chemicals | Emerging Cross-Sectional Technologies | 187 | Expired |
| US4715967A | Composition and method for temporarily reducing permeability of subterranean formations | Emerging Cross-Sectional Technologies | 162 | Expired |
| US4727163A | Process for preparing highly pure cyclic esters | Chemistry; Metallurgy | 68 | Expired |
| US4002778A | Chemical plating process | Electricity | 56 | Expired |
| US5278256A | Rapidly degradable poly (hydroxyacid) compositions | Chemistry; Metallurgy | 35 | Expired |
| US5679864A | Process for the synthesis of curcumin-related compounds | Chemistry; Metallurgy | 30 | Expired |
| US4127513A | Method for preparing polyether glycols | Chemistry; Metallurgy | 23 | Expired |
| US5138074A | Continuous catalyzed vapor phase dimeric cyclic ester process | Chemistry; Metallurgy | 23 | Expired |
| US7161608B2 | Digital system and method for displaying images using shifted bit-weights for neutral density filtering applications | Physics | 14 | Expired |
| US7471273B2 | Bit segment timing organization providing flexible bit segment lengths | Physics | 11 | Active |
| US4985180A | Process for preparing phenyl esters of substituted acids | Chemistry; Metallurgy | 9 | Expired |
| US5110868A | Biodegradable compositions for controlled release of chemical agents | Chemistry; Metallurgy | 9 | Expired |
| US5110954A | Dehydrogenation of diols | Performing Operations; Transporting | 8 | Expired |
| US5880573A | Low-cost phase-lock motor control method and architecture | Physics | 6 | Expired |
| US5696287A | Process for making aqueous betaine solutions | Chemistry; Metallurgy | 4 | Expired |
| US4130595A | Melt oxychlorination process | Chemistry; Metallurgy | 4 | Expired |
| US4853485A | Method for producing monomethylformamide and dimethylformamide | Chemistry; Metallurgy | 3 | Expired |
| US7972001B2 | Projection illumination device and method for projection visual display system using multiple controlled light emitters having individual wavelengths | Physics | 3 | Active |
| US7948499B2 | Color control algorithm for use in display systems | Physics | 3 | Active |
| US5374743A | Process for the synthesis of lactide or glycolide from lactic acid or glycolide acid oligomers | Chemistry; Metallurgy | 3 | Expired |
| US5684191A | Process for the combined synthesis of betaine and choline chloride | Chemistry; Metallurgy | 3 | Expired |
| US7265794B2 | Managing the color temperature for a light source array | Electricity | 2 | Expired |
| US4281193A | Process for preparing substituted formamides | Chemistry; Metallurgy | 2 | Expired |
| US7403187B2 | Generalized reset conflict resolution of load/reset sequences for spatial light modulators | Physics | 2 | Expired |
| US4302598A | Recycling catalyst in preparation of dimethylformamide from dimethylamine and carbon monoxide | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.