Ravi K. Varma
79Patents
12h-index
28Co-inventors
84Inventor score
Filing activity: Nov 25, 1974 → Apr 20, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6104018A | Uniform bulk material processing using multimode microwave radiation | Electricity | 35 | Expired |
| USD646174S1 | Container | General | 28 | Expired |
| USD649059S1 | Container | General | 22 | Expired |
| US4209614A | Vitamin B.sub.12 derivative suitable for radiolabeling | Physics | 21 | Expired |
| US4687598A | Electrode-active material for electrochemical batteries and method of preparation | Emerging Cross-Sectional Technologies | 21 | Expired |
| US6136992A | 2-alkoxy estradiols and derivatives thereof | Chemistry; Metallurgy | 19 | Expired |
| US6646241B1 | Microwave-assisted steam sterilization of dental and surgical instruments | Human Necessities | 19 | Expired |
| US4935114A | Microwave-enhanced chemical processes | Human Necessities | 18 | Expired |
| US4361559A | Antiinflammatory 17,17-bis (substituted thio) androstenes | Chemistry; Metallurgy | 16 | Expired |
| US6900421B2 | Microwave-assisted steam sterilization of dental and surgical instruments | Human Necessities | 14 | Expired |
| US5049578A | 1-aroyl or 1-acyl-2-2pyrrolidinyl-3,5-dihydroxy alkanoic and alkenoic acids, salts, esters and lactones | Chemistry; Metallurgy | 12 | Expired |
| US4091036A | 17-Alkylthio (and arylthio)-1',2',3',4'-tetrahydroandrosteno [16 .alpha., 17 .alpha.-b]naphthalenes and derivatives | Chemistry; Metallurgy | 12 | Expired |
| US4728670A | Biphenyl hydroxamic acids | Human Necessities | 12 | Expired |
| US6943191B1 | Disubstituted lavendustin A analogs and pharmaceutical composition comprising the analogs | Chemistry; Metallurgy | 12 | Expired |
| US4146538A | 17-Alkylthio (and arylthio) androsteno[17.alpha.,16.alpha.-b]benzopyran-3-ones and [16.alpha.,17.alpha.]naphthopyran-3-ones | Chemistry; Metallurgy | 11 | Expired |
| US4133811A | 13-Alkylthio (and arylthio)-11,17-epoxy-17-methyl-18-norandrostenes | Chemistry; Metallurgy | 11 | Expired |
| US4094840A | 17-Alkylthio (and arylthio) androsteno[16.alpha.,17.alpha.-b]benzodioxin-3-ones | Chemistry; Metallurgy | 11 | Expired |
| US4839133A | Target and method for the production of fission product molybdenum-99 | Physics | 9 | Expired |
| USD614965S1 | Container | General | 9 | Expired |
| USD614495S1 | Side portion of a container | General | 9 | Expired |
| USD616758S1 | Container | General | 8 | Expired |
| US3944584A | Steroidal (16.alpha.,17-d)cyclohexenes | Human Necessities | 8 | Expired |
| USD616309S1 | Container | General | 8 | Expired |
| US5049577A | 2-pyrrolidone substituted dihydroxy alkanoic, alkenoic and alkynoic acids, compositions and HMG-CoA reductase inhibition therewith | Chemistry; Metallurgy | 7 | Expired |
| US3994935A | Steroidal 16.beta.-alkyl[16.alpha.,17-b]naphthalenes | Chemistry; Metallurgy | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.