David R. White
37Patents
5h-index
11Co-inventors
66Inventor score
Filing activity: Oct 24, 1974 → Oct 23, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4107439A | Process for preparing arylalkanoic acid derivatives | Chemistry; Metallurgy | 15 | Expired |
| US4351771A | Spectinomycin analogs and methods for the preparation thereof | Chemistry; Metallurgy | 11 | Expired |
| US4406486A | Lock mechanism | Emerging Cross-Sectional Technologies | 9 | Expired |
| US9056727B2 | Multi-piece shaft | Emerging Cross-Sectional Technologies | 7 | Active |
| US4282152A | Intermediates for preparing spectinomycin and analogs thereof | Chemistry; Metallurgy | 5 | Expired |
| US4021478A | Preparation of carboxylic acids from glycidonitriles with ionic lewis acids | Chemistry; Metallurgy | 5 | Expired |
| US9359144B2 | Multi-piece shaft | Emerging Cross-Sectional Technologies | 5 | Active |
| US4420623A | Process and intermediates for preparing 6'-methylspectinomycin and analogs thereof | Chemistry; Metallurgy | 4 | Expired |
| US5635495A | Pyrimidine bisphosphonate esters and (alkoxymethylphosphinyl)alkyl phosphonic acids as anti-inflammatories | Chemistry; Metallurgy | 4 | Expired |
| US4304727A | 9.alpha.-Debromination | Chemistry; Metallurgy | 4 | Expired |
| US4380651A | Process for preparing 6'-methylspectinomycin and analogs thereof | Chemistry; Metallurgy | 4 | Expired |
| US3975431A | Preparing carboxylic acids from glycidonitriles through enol acylates | Chemistry; Metallurgy | 4 | Expired |
| US4361701A | Novel compounds, compositions and processes | Human Necessities | 4 | Expired |
| US4532336A | 6'-Alkylspectinomycins | Chemistry; Metallurgy | 3 | Expired |
| US4380652A | Enamines of 6'-methylspectinomycin and process for preparing the same | Chemistry; Metallurgy | 3 | Expired |
| US4420624A | Process for preparing spectinomycin analogs | Chemistry; Metallurgy | 3 | Expired |
| US4008270A | Process for preparing 2-(substituted phenyl)propionic acids | Chemistry; Metallurgy | 3 | Expired |
| US3987094A | Preparing carboxylic acids from glycidonitriles | Chemistry; Metallurgy | 2 | Expired |
| US4345086A | Intermediate compounds in the preparation of spectinomycin | Chemistry; Metallurgy | 2 | Expired |
| US4603212A | Analogs of the antibiotic spectinomycin | Chemistry; Metallurgy | 2 | Expired |
| US7717525B2 | Spindle and hub assembly | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US4467103A | Processes for the preparation of spectinomycin analogs, products and intermediates therein | Chemistry; Metallurgy | 2 | Expired |
| US3933864A | Process for preparing glycidonitriles | Chemistry; Metallurgy | 1 | Expired |
| US4325881A | Debromination | Chemistry; Metallurgy | 1 | Expired |
| US4578485A | Synthesis of spectinomycin analogs by an improved Grignard process | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.