Donald E. Carlson
8Patents
4h-index
2Co-inventors
47Inventor score
Filing activity: Sep 27, 1976 → Feb 14, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4117856A | Frostproof backflow preventer | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4368756A | Check valve | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4112966A | Ejector purge hydrant | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4859270A | In-register web splicer | Performing Operations; Transporting | 17 | Expired |
| US4474047A | Method and apparatus for inherent rotary joint calibration | Physics | 4 | Expired |
| US8626570B2 | Method and system for data quality management | Physics | 3 | Active |
| US11267766B2 | Liquid fertilizer applicators and methods of forming liquid fertilizer concentrate | Chemistry; Metallurgy | 1 | Active |
| USD1084045S1 | Fertilizer container | General | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.