SETRA SYSTEMS, INC.
49Patents
8Active
49Granted
42Portfolio score
Filing activity: Mar 29, 1976 → Jan 9, 2020 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5194819A | Linearized capacitance sensor system | Physics | 81 | Expired |
| US4084438A | Capacitive pressure sensing device | Physics | 65 | Expired |
| US4358814A | Capacitive pressure sensor | Physics | 65 | Expired |
| US5542300A | Low cost, center-mounted capacitive pressure sensor | Physics | 58 | Expired |
| US5604315A | Apparatus using a feedback network to measure fluid pressures | Physics | 58 | Expired |
| US5442962A | Capacitive pressure sensor having a pedestal supported electrode | Physics | 57 | Expired |
| US5024099A | Pressure transducer with flow-through measurement capability | Human Necessities | 56 | Expired |
| US5115676A | Flush-mounted pressure sensor | Physics | 48 | Expired |
| US6014800A | Method of making a pressure transducer having a tensioned diaphragm | Emerging Cross-Sectional Technologies | 47 | Expired |
| US5939639A | Pressure transducer housing with barometric pressure isolation | Physics | 47 | Expired |
| US4649759A | Force transducer | Physics | 45 | Expired |
| US6532834B1 | Capacitive pressure sensor having encapsulated resonating components | Physics | 44 | Expired |
| US4464725A | Temperature compensated measuring system | Physics | 42 | Expired |
| US5150275A | Capacitive pressure sensor | Physics | 39 | Expired |
| US6789429B2 | Capacitive pressure sensor having encapsulated resonating components | Physics | 35 | Expired |
| US6205861A | Transducer having temperature compensation | Physics | 35 | Expired |
| US5798462A | Magnetic position sensor with magnetic field shield diaphragm | Physics | 34 | Expired |
| US4054833A | Capacitance measuring system | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4093915A | Capacitance measuring system | Physics | 30 | Expired |
| US4434203A | Diaphragm | Emerging Cross-Sectional Technologies | 27 | Expired |
| US6180892A | Mixing scale | Physics | 27 | Expired |
| US4386312A | Linear capacitive sensor system | Physics | 21 | Expired |
| US7658096B2 | Humidity sensing apparatus | Physics | 20 | Active |
| US4899600A | Compact force transducer with mechanical motion amplification | Physics | 20 | Expired |
| US6019002A | Pressure transducer having a tensioned diaphragm | Emerging Cross-Sectional Technologies | 19 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.