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Inventor

Robert Grisar

Inventor
Ruskin, FL, US

Overview

4→
Patents
1992–2021
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 4 as inventor

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

F01Cprimary
F01CRotary-piston or oscillating-piston machines or engines43%
Y02TClimate change mitigation technologies related to transportation29%
F01MLubricating of machines or engines in general14%
F02BInternal-combustion piston engines14%
PatentTitleYear
11,085,300Prime movers, pumps and compressors having reciprocating vane actuator assemblies and methods202110,570,739Circle ellipse engine20207,896,630'Rotary device with reciprocating vanes and seals therefor'2011D0324104'Computerized tomographic scanner control keyboard'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992Patents assigned to PICKER INT INC (1)· patent assignee history
1992Based in Richmond Hts., OH, US· patent location history
2011–2021Patents assigned to REGI U S INC (2)· patent assignee history
2011Based in Kirtland, OH, US· patent location history
2020Patents assigned to GRISAR ROBERT A (1)· patent assignee history
2020–2021Based in Ruskin, FL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
REGI U S INC22011–2021
GRISAR ROBERT Aself12020
PICKER INT INC11992
Locations
LocationPatentsSpan
Ruskin, Florida, US22020–2021
Kirtland, OH, US12011
Richmond Hts., OH, US11992