David Richardson
26Patents
13h-index
51Co-inventors
84Inventor score
Filing activity: Sep 6, 1984 → Apr 1, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6577801B2 | Holey optical fibers | Physics | 213 | Expired |
| US6968107B2 | Holey optical fibres | Physics | 212 | Expired |
| US4635053A | Apparatus for supervising access to individual items | Physics | 95 | Expired |
| US6917631B2 | Pulsed light sources | Electricity | 80 | Expired |
| US6813429B2 | Sources of, and methods for generating, optical pulses | Electricity | 63 | Expired |
| US6614975B2 | Optical fiber and optical fiber device | Electricity | 49 | Expired |
| US7233607B2 | Pulsed light sources | Electricity | 37 | Expired |
| US7136559B2 | Optical fibre-based devices utilising the Raman effect | Physics | 26 | Expired |
| US6901087B1 | Broadband laser source | Electricity | 21 | Expired |
| US8561679B2 | Heat exchanger header and related methods and apparatuses | Emerging Cross-Sectional Technologies | 20 | Active |
| US6304362A | Apparatus providing variable reflectivity to electromagnetic radiation | Physics | 15 | Expired |
| US5613614A | Storage rack | Human Necessities | 14 | Expired |
| US7155099B2 | Holey optical fibres of non-silica based glass | Chemistry; Metallurgy | 14 | Expired |
| US6628864B2 | Optical code generation and detection | Physics | 13 | Expired |
| US7003180B2 | Apparatus for providing timing jitter tolerant optical modulation of a first signal by a second signal | Physics | 10 | Expired |
| US9594262B2 | Optical devices, systems and methods | Physics | 9 | Active |
| US9904008B2 | Hollow-core photonic bandgap fibers and methods of manufacturing the same | Physics | 8 | Active |
| US8561678B2 | Heat exchanger tank and related apparatuses | Mechanical Engineering; Lighting; Heating | 7 | Active |
| US6095712A | Motor vehicle steering linkage ball joint protective clip | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6801356B2 | Optical parametric devices and methods for making same | Physics | 5 | Expired |
| US9316449B2 | Heat exchanger tank and related apparatuses | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US11555958B2 | Nested anti-resonant nodeless optical fiber and subsurface system using the same | Physics | 1 | Active |
| US11034607B2 | Hollow-core photonic bandgap fibers and methods of manufacturing the same | Chemistry; Metallurgy | 1 | Active |
| US11585976B2 | Optical fiber with corrugations | Physics | 0 | Active |
| US9584221B2 | Optical transmitter | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.