David A. Waldman
24Patents
8h-index
28Co-inventors
75Inventor score
Filing activity: Dec 29, 1980 → Feb 21, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5759721A | Holographic medium and process for use thereof | Physics | 59 | Expired |
| US7728959B2 | Acquisition of high resolution biometric images | Physics | 33 | Active |
| US5721630A | High-efficiency reflective holographic diffuser and method for making thereof | Physics | 33 | Expired |
| US6992805B2 | Holographic filter with a wide angular field of view and a narrow spectral bandwidth | Physics | 25 | Expired |
| US7787110B2 | Diffractive imaging system and method for the reading and analysis of skin topology | Human Necessities | 16 | Active |
| US6784300B2 | Holographic storage medium comprising polyfunctional epoxy monomers capable of undergoing cationic polymerization | Physics | 16 | Expired |
| US7411708B2 | Method and apparatus for phase-encoded homogenized Fourier transform holographic data storage and recovery | Physics | 12 | Expired |
| US4378486A | Temperature controlled timer | Physics | 9 | Expired |
| US7738152B2 | High areal density holographic data storage system | Physics | 8 | Active |
| US7742210B2 | Replication of data to holographic medium using holographic master media | Physics | 6 | Active |
| US5460860A | Mesogen-containing biaxially oriented films | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7652809B2 | Method and apparatus for phase-encoded homogenized Fourier transform holographic data storage and recovery | Physics | 4 | Active |
| US7480084B2 | Holographic filter with a wide angular field of view and a narrow spectral bandwidth | Physics | 3 | Expired |
| US7453611B2 | Replication of data to holographic medium using holographic master media | Physics | 3 | Active |
| US7297448B2 | Data storage medium comprising colloidal metal and preparation process thereof | Physics | 2 | Expired |
| US6904491B2 | Hybrid data storage system | Physics | 2 | Expired |
| US7070886B2 | Holographic storage medium comprising polyfunctional epoxy monomers capable of undergoing cationic polymerization | Physics | 1 | Expired |
| US8720745B2 | Dispensing system and security device for use in conjunction therewith | Performing Operations; Transporting | 1 | Active |
| US6881464B2 | Method and apparatus for producing optical recording media with accurately parallel surfaces | Emerging Cross-Sectional Technologies | 1 | Expired |
| US7332249B2 | Holographic storage medium comprising polyfunctional epoxy monomers capable of undergoing cationic polymerization | Physics | 1 | Expired |
| US7527914B2 | Reading inhibit agents | Emerging Cross-Sectional Technologies | 0 | Active |
| US10546968B2 | Solar concentration system using volume holograms | Emerging Cross-Sectional Technologies | 0 | Active |
| US7892702B2 | Sensitizer dyes for photoacid generating systems | Physics | 0 | Active |
| US7742378B2 | Method and apparatus for azimuthal holographic multiplexing using elliptical reflector | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.