William R. Tolbert
27Patents
13h-index
20Co-inventors
81Inventor score
Filing activity: Nov 3, 1976 → Feb 5, 1996
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4537860A | Static cell culture maintenance system | Chemistry; Metallurgy | 89 | Expired |
| US5843766A | Apparatus for the growth and packaging of three dimensional tissue cultures | Chemistry; Metallurgy | 58 | Expired |
| US4417861A | Cell culture pumping system | Emerging Cross-Sectional Technologies | 37 | Expired |
| US4184916A | Continuous cell culture system | Chemistry; Metallurgy | 34 | Expired |
| US4335215A | Method of growing anchorage-dependent cells | Emerging Cross-Sectional Technologies | 32 | Expired |
| US4639422A | Cell culture filter apparatus and method | Chemistry; Metallurgy | 30 | Expired |
| US4253684A | Quick connect coupler with air shield | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4289854A | Cell culture method and apparatus | Chemistry; Metallurgy | 27 | Expired |
| US4178209A | Continuous cell culture method and apparatus | Chemistry; Metallurgy | 24 | Expired |
| US4751084A | Tissue plasminogen activator from normal human colon cells | Human Necessities | 23 | Expired |
| US4166768A | Continuous cell culture system | Chemistry; Metallurgy | 23 | Expired |
| US4059486A | Cell culture process | Chemistry; Metallurgy | 20 | Expired |
| US4059485A | Adaptation of cell lines to suspension culture | Chemistry; Metallurgy | 19 | Expired |
| US4273871A | Production of angiogenic factor by cell culture | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4229531A | Production of tumor angiogenesis factor by cell culture | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4187149A | Cell culture sampling system | Chemistry; Metallurgy | 9 | Expired |
| US4851517A | Tissue plasminogen activator oligosaccharide from normal human colon cells | Human Necessities | 7 | Expired |
| US5288631A | Mass transfer membrane for oxygenation of animal cell reactors | Chemistry; Metallurgy | 7 | Expired |
| US4533496A | Method of isolating monoclonal antibodies from hybridoma cultures | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4268629A | Production of angiogenic factor by cell culture | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4209587A | Production of tumor angiogenesis factor by cell culture | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4217412A | Production of tumor angiogenesis factor by cell culture | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4229532A | Production of tumor angiogenesis factor by cell culture | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4225670A | Production of tumor angiogenesis factor by cell culture | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4210719A | Production of tumor angiogenesis factor by cell culture | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.