Control Concepts, Inc
28Patents
4Active
28Granted
37Portfolio score
Filing activity: May 16, 1975 → Feb 6, 2025
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5704200A | Agricultural harvester ground tracking control system and method using fuzzy logic | Emerging Cross-Sectional Technologies | 110 | Expired |
| US5359836A | Agricultural harvester with closed loop header control | Human Necessities | 83 | Expired |
| US5535577A | Agricultural harvester with closed loop ground tracking control | Human Necessities | 62 | Expired |
| US5463854A | Agricultural harvester with closed loop ground tracking control | Human Necessities | 48 | Expired |
| US4095163A | Transient voltage suppression circuit | Electricity | 37 | Expired |
| US4401009A | Closed center programmed valve system with load sense | Mechanical Engineering; Lighting; Heating | 32 | Expired |
| US4156838A | Active filter circuit for transient suppression | Electricity | 23 | Expired |
| US3980002A | Two stage solenoid actuated valve, system, and method of actuation | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US4539617A | AC Power line transient suppressing circuit | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4628438A | Power converter apparatus and method employing plural branches | Electricity | 22 | Expired |
| US4126293A | Feathering valve assembly | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5351601A | Hydraulic control system | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US4046399A | Electrohydraulic system for towed vehicle | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4602308A | Circuit for suppressing transients occurring in either common or transverse modes | Electricity | 14 | Expired |
| US3977649A | Normally closed solenoid operated valve assembly with relief function | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US4050596A | Electrohydraulic valve assembly for front end loader attachment to farm tractor | Fixed Constructions | 12 | Expired |
| US4280396A | Hydraulic oscillator | Performing Operations; Transporting | 11 | Expired |
| US4611190A | Apparatus for transforming multiphase power of different phase to phase line levels into multiphase power having a single phase to phase voltage level | Electricity | 11 | Expired |
| US4345736A | Solenoid operated valve and dashpot assembly | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4202250A | Programmed unbalanced load valve system | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4276810A | Programmed valve system used for positioning control | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4357645A | System for detecting faulty SCR's | Physics | 6 | Expired |
| US4191091A | Feathering valve assembly | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4276811A | Closed center programmed valve system with load sense | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US10464742B2 | Aerator valve assembly | Mechanical Engineering; Lighting; Heating | 2 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.