Robert B. Walker
29Patents
10h-index
31Co-inventors
75Inventor score
Filing activity: Jun 22, 1981 → Nov 19, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7031571B2 | Bragg grating and method of producing a Bragg grating using an ultrafast laser | Physics | 34 | Expired |
| US6993221B2 | Bragg grating and method of producing a bragg grating using an ultrafast laser | Physics | 21 | Expired |
| US4496897A | Variable voltage control for self-excited self-regulated synchronous alternator | Electricity | 17 | Expired |
| USD370822S | Bilateral extremity drape | General | 15 | Expired |
| US7483615B2 | Method of changing the refractive index in a region of a core of a photonic crystal fiber using a laser | Physics | 14 | Active |
| US8185471B1 | Integrated payment receiving and processing system | Physics | 13 | Active |
| US7689087B2 | Method of changing the birefringence of an optical waveguide by laser modification of the cladding | Physics | 11 | Active |
| USD365115S | Welding bracket | General | 10 | Expired |
| USD391586S | Right angle welding bracket | General | 10 | Expired |
| US4408152A | Single phase, self-regulated alternator | Electricity | 10 | Expired |
| US7379643B2 | Optical fiber sensor based on retro-reflective fiber Bragg gratings | Physics | 8 | Expired |
| USD388799S | Ninety-degree welding bracket | General | 7 | Expired |
| US7245795B2 | Optical device incorporating a tilted bragg grating | Physics | 7 | Expired |
| US8655047B1 | Electronic check and stub separation | Physics | 7 | Active |
| US4374136A | Pyrimidine derivatives | Chemistry; Metallurgy | 6 | Expired |
| US7515792B2 | Method of increasing photosensitivity of glasses to ultrafast infrared laser radiation using hydrogen or deuterium | Physics | 6 | Active |
| USD384359S | Welding bracket for round pipe | General | 6 | Expired |
| US7567734B2 | Ridge waveguide optical sensor incorporating a Bragg grating | Physics | 4 | Active |
| US8402789B2 | High temperature stable fiber grating sensor and method for producing same | Physics | 4 | Active |
| US8272236B2 | High temperature stable fiber grating sensor and method for producing same | Physics | 4 | Active |
| US10156680B2 | Forming an optical grating with an apparatus providing an adjustable interference pattern | Physics | 4 | Active |
| USD365114S | Welding jig | General | 3 | Expired |
| US4862651A | Downspout shield | Fixed Constructions | 2 | Expired |
| US10520669B2 | Automated system for trans-jacket fibre Bragg grating inscription and manufacturing | Physics | 2 | Active |
| US11359939B2 | Low insertion loss high temperature stable fiber Bragg grating sensor and method for producing same | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.