Ronald J. Schmidt
14Patents
7h-index
21Co-inventors
66Inventor score
Filing activity: Jan 23, 1989 → Nov 22, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD643102S1 | Dispensing device | General | 31 | Expired |
| US4904565A | High-contrast photographic element | Physics | 16 | Expired |
| USD668151S1 | Container with retaining device | General | 13 | Active |
| US8745771B2 | Drain clog remover | Fixed Constructions | 9 | Active |
| US6619997B1 | Modular connector strain relief back shell and wiring method | Electricity | 8 | Expired |
| US5279933A | High-contrast photographic elements with improved print-out capability | Physics | 8 | Expired |
| US5104777A | Photographic element having both a filter dye layer and a matte layer | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6158119A | Circuit board panel test strip and associated method of assembly | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5372921A | High-contrast photographic elements with enhanced safelight performance | Physics | 6 | Expired |
| US8739968B2 | Drain clog remover | Fixed Constructions | 5 | Active |
| US4997735A | Vacuum contacting process for photographic elements | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5667950A | High-contrast photographic elements protected against halation | Emerging Cross-Sectional Technologies | 4 | Expired |
| US8549675B2 | Toilet bowl cleaning device including dual activation mechanism | Fixed Constructions | 2 | Active |
| US5910398A | Photographic glass plates having antihalation underlayer | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.