James A. Ritchie
16Patents
6h-index
19Co-inventors
63Inventor score
Filing activity: Aug 6, 1975 → Sep 23, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5131198A | Corner bead for drywall construction | Fixed Constructions | 60 | Expired |
| US4997640A | Oral compositions | Human Necessities | 29 | Expired |
| USD312182S | Combined toothbrush and toothpaste holder | General | 21 | Expired |
| US3990819A | Seals for rotary mechanisms | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US8496881B2 | Chemical delivery assembly | Mechanical Engineering; Lighting; Heating | 8 | Active |
| US9208460B2 | System and methods to facilitate analytics with a tagged corpus | Physics | 7 | Active |
| US3989424A | Engine ports | Emerging Cross-Sectional Technologies | 6 | Expired |
| US3989421A | Housing construction for slant axis rotary mechanism | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US4008987A | Combined timing gear and pump for rotary mechanisms | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US9779130B2 | Systems and methods to facilitate analytics with a tagged corpus | Physics | 2 | Active |
| US4028020A | Oil seal for a rotary engine | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| USD335600S | Soap dish | General | 2 | Expired |
| US10489392B2 | Systems and methods to facilitate analytics with a tagged corpus | Physics | 0 | Active |
| US11705677B2 | Water-in-fuel sensor and method of assembly thereof | Electricity | 0 | Active |
| US4056336A | Apex seals for slant axis rotary mechanisms | Mechanical Engineering; Lighting; Heating | 0 | Expired |
| US9222211B2 | Mixing chamber connecting system in a washing machine | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.