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Inventor

Robert C. Prescott

Inventor
Marshfield, MA, US

Overview

18→
Patents
1976–2021
Patent span
Physics
Primary field (CPC G)

Patents· 18 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

Y10Tprimary
Y10TTechnical subjects covered by former us classification20%
G05BControl or regulating systems in general14%
F16KValves11%
G05DSystems for controlling or regulating non-electric variables11%
F15BSystems acting by means of fluids in general9%
H01FMagnets9%
G01MTesting static or dynamic balance of machines or structures5%
G01NInvestigating or analysing materials by determining their chemical or physical properties5%
A62CFire-fighting2%
F17CVessels for containing or storing compressed, liquefied or solidified gases2%
PatentTitleYear
10,883,899System and method for identifying data useful for valve diagnostics202110,234,057Method for detecting an operating condition on a valve assembly and implementation thereof20199,857,801'System and method for detecting a stick-slip'20189,810,345'Methods to improve online diagnostics of valve assemblies on a process line and implementation thereof'20179,797,811'System and method for identifying data useful for valve diagnostics'20179,719,610'Method for detecting an operating condition on a valve assembly and implementation thereof'20179,625,900'System for data sampling of control valves using confidence scores'20176,318,497'Pressure-sensitive switch, its method of calibration and use in a hydrophone array'20015,655,579'Method and pparatus for testing fire suppression systems'19975,257,639'Electropneumatic positioner'19935,159,949'Electropneumatic positioner'19925,022,425'Sensitive electrical to mechanical transducer'19914,926,896'Sensitive electrical to mechanical transducer'19904,492,246'Solid state current-to-pressure and current-to-motion transducer'19854,098,592'Temperature control system for chromatographic apparatus'19784,059,994'Pneumatic chromatograph'19774,006,624'Pneumatic chromatograph'19773,981,318'Pneumatic output signal limiting device'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1978Patents assigned to FOXBORO CO (4)· patent assignee history
1976–1978Based in Foxboro, MA, US· patent location history
1985–2021Based in Marshfield, MA, US· patent location history
1990–1993Patents assigned to DRESSER IND (4)· patent assignee history
2017–2019Patents assigned to DRESSER INC (4)· patent assignee history
2017–2018Patents assigned to GEN ELECTRIC (2)· patent assignee history
2019–2021Patents assigned to Dresser LLC (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DRESSER INC42017–2019
DRESSER IND41990–1993
FOXBORO CO41976–1978
Dresser LLC22019–2021
GEN ELECTRIC22017–2018
Locations
LocationPatentsSpan
Marshfield, Massachusetts, US141985–2021
Foxboro, Massachusetts, US41976–1978