Martin Johnson
12Patents
8h-index
16Co-inventors
69Inventor score
Filing activity: Nov 18, 1974 → Sep 13, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6845886B2 | Valve for dispensing two liquids at a predetermined ratio | Performing Operations; Transporting | 36 | Expired |
| US7290680B2 | Valve for dispensing two liquids at a predetermined ratio | Performing Operations; Transporting | 32 | Expired |
| US6821414B1 | Water treatment apparatus | Chemistry; Metallurgy | 18 | Expired |
| US6644620B2 | Dispensing valve with helical flow orifice | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US6705489B2 | Ratio controlled post-mix valve | Performing Operations; Transporting | 15 | Expired |
| US3976121A | Detection apparatus | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5031740A | High speed cam actuated disconnect | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US6962270B1 | Dosing valve with flow rate sensor for a beverage dispenser | Physics | 9 | Expired |
| US6474504B1 | Flow regulation valve for a beverage dispenser | Performing Operations; Transporting | 7 | Expired |
| US6857308B2 | Valve technology | Emerging Cross-Sectional Technologies | 6 | Expired |
| US9940569B2 | RFID tag assembly and surgical instrument | Physics | 0 | Active |
| US11126907B2 | Method of manufacturing an RFID tag assembly and RFID tag assembly | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.