Process Systems, Inc.
10Patents
0Active
10Granted
34Portfolio score
Filing activity: Aug 3, 1970 → Jan 22, 1998
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5627759A | Electrical energy meters having real-time power quality measurement and reporting capability | Emerging Cross-Sectional Technologies | 174 | Expired |
| USRE29383E | Digital fluid flow rate measurement or control system | General | 141 | Expired |
| US4686630A | Load management control system and method | Emerging Cross-Sectional Technologies | 65 | Expired |
| US4817204A | Optical communication apparatus and method for telephone supervisory and audio signals | Electricity | 25 | Expired |
| US3942553A | Digital fluid flow control system with trim adjustment | Emerging Cross-Sectional Technologies | 20 | Expired |
| US3937248A | Fluid flow control system employing a plurality of digital valve elements | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4148340A | Digital fluid flow control system | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4998464A | Heat exchange device for food | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US4801874A | Method and apparatus for measuring electricity | Physics | 4 | Expired |
| US6059535A | Pump with air purging and self-cleaning features | Mechanical Engineering; Lighting; Heating | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.