David B. Todd
15Patents
8h-index
15Co-inventors
69Inventor score
Filing activity: Jul 27, 1977 → Sep 14, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4136968A | Multi-screw, continuous, material processing systems | Performing Operations; Transporting | 25 | Expired |
| US5707573A | Method of preparing thermoplastic foams using a gaseous blowing agent | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5306452A | Devolatilizing and/or processing systems and methods | Performing Operations; Transporting | 17 | Expired |
| US4537257A | Submersible pump | Fixed Constructions | 17 | Expired |
| US5708197A | Helical barrel rheometer | Physics | 14 | Expired |
| US4129249A | Centrifuge for separating solids and liquids | Performing Operations; Transporting | 12 | Expired |
| US5372418A | Back mix drag-flow apparatus | Performing Operations; Transporting | 11 | Expired |
| US4810539A | Earth art forms | Emerging Cross-Sectional Technologies | 9 | Expired |
| US7451612B2 | Geothermal exchange system incorporating a thermally superconducting medium | Emerging Cross-Sectional Technologies | 8 | Active |
| US7632086B2 | Melt fracture reduction | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4412964A | Centrifugal pelletizing systems and process | Performing Operations; Transporting | 3 | Expired |
| US4284232A | Liquid-liquid centrifugal contacting machines and methods of constructing and operating them | Performing Operations; Transporting | 1 | Expired |
| US4457882A | Centrifugally powered pelletizing machine and method | Performing Operations; Transporting | 1 | Expired |
| US8163114B2 | Netshape manufacturing processes and compositions | Chemistry; Metallurgy | 0 | Active |
| US4447383A | Method of centrifugally pelletizing certain synthetic plastic materials | Performing Operations; Transporting | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.