Sys-Tec, Inc.
Minneapolis, MN, US· latest recorded location
Sys-Tec, Inc. is named on 5 US grants and 0 published applications in this corpus. Its most frequent classification is H05B (Electric heating).
- Granted patents
- 5
- Published applications
- 0
- Inventors
- 5
- Granted in 2026 so far
- 0
- Most recent grant
- 10 Sep 1985
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
By publication year.
Technology areas
Share of 5 documents
- H05BElectric heating3
- G05DSystems for controlling or regulating non-electric variables2
- B01JChemical or physical processes1
- G01NInvestigating or analysing materials by determining their chemical or physical properties1
- G01RMeasuring electric variables1
- Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests1
- Y10TTechnical subjects covered by former us classification1
Recent patents
- Constant current closed loop controller for rotating system10 Sep 1985US 4,540,877 A
- Temperature control system for liquid chromatographic columns employing a thin film heater/sensor20 Nov 1984US 4,484,061 A
- Instrument zeroing circuit15 Feb 1983US 4,374,362 A
- Regeneration detector for water softeners16 Mar 1982US 4,320,010 A
- Heater control for rotary members12 Sep 1978US 4,114,023 A
No published applications.
Most cited
By later US patents
- Temperature control system for liquid chromatographic columns employing a thin film heater/sensor421US 4,484,061 A1984
- Regeneration detector for water softeners24US 4,320,010 A1982
- Heater control for rotary members9US 4,114,023 A1978
- Instrument zeroing circuit6US 4,374,362 A1983
- Constant current closed loop controller for rotating system2US 4,540,877 A1985