Douglas Brenner
32Patents
17h-index
21Co-inventors
81Inventor score
Filing activity: Apr 18, 1977 → Jul 2, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8478544B2 | Direct identification and measurement of relative populations of microorganisms with direct DNA sequencing and probabilistic methods | Emerging Cross-Sectional Technologies | 90 | Active |
| US6129662A | Surgical tool with surgical field illuminator | Physics | 73 | Expired |
| US5430620A | Compact surgical illumination system capable of dynamically adjusting the resulting field of illumination | Emerging Cross-Sectional Technologies | 55 | Expired |
| US5430634A | Concentrating and collecting optical system using concave toroidal reflectors | Physics | 51 | Expired |
| US5414600A | Condensing and collecting optical system using an ellipsoidal reflector | Physics | 45 | Expired |
| US4229337A | Aromatic amide plasticizer for ionic polymers | Chemistry; Metallurgy | 40 | Expired |
| US5751869A | Optical system for coupling light from a single fiber optic into a fiber bundle | Human Necessities | 33 | Expired |
| US4193899A | Elastomeric systems having unusual memory characteristics | Emerging Cross-Sectional Technologies | 33 | Expired |
| US5836667A | Concentrating and collecting optical system using concave toroidal reflectors | Physics | 32 | Expired |
| US4221887A | Plasticization of quaternary phosphonium ion containing polymers | Chemistry; Metallurgy | 28 | Expired |
| US4102876A | Quaternary phosphonium ionomers | Chemistry; Metallurgy | 26 | Expired |
| US5642456A | Light intensity attenuator for optical transmission systems | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5898802A | Coupling method and apparatus for coupling polymer fibers to a light source for improving power handling capabilities of the polymer fibers | Physics | 24 | Expired |
| US4131587A | Plasticization of neutralized sulfonated elastomeric polymer | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4118362A | Plasticization of neutralized sulfonated elastomeric polymer | Chemistry; Metallurgy | 19 | Expired |
| US4175069A | Plasticization of neutralized sulfonated elastomeric polymer | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4181780A | Thermoplastic ionomer foams | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4118359A | Plasticization of neutralized sulfonated elastomeric polymer | Chemistry; Metallurgy | 17 | Expired |
| US5509095A | Condensing and collecting optical system with axially displaced concave reflector and optical fiber | Physics | 13 | Expired |
| US5754719A | Method for coupling light from single fiberoptic to a multi-fiber bundle with enhanced field uniformity and better coupling efficiency | Physics | 13 | Expired |
| US4173695A | Alkyl ammonium ionomers | Chemistry; Metallurgy | 13 | Expired |
| US4127546A | Plasticization of neutralized sulfonated elastomers with rosin salts | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4164512A | Foamable thermoelastic ionomer composition | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4187206A | Blend composition of an oil and a neutralized sulfonated elastomeric polymer | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6186648A | Concentrating and collecting optical system using concave toroidal reflectors | Physics | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.