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Robert A. Grisar
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Ruskin, FL, US
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Patents Grants
last 30 patents
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Patent Grant
Prime movers, pumps and compressors having reciprocating vane actua...
Patent number
11,085,300
Issue date
Aug 10, 2021
Regi U.S., Inc.
Robert Grisar
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Patent Grant
Circle ellipse engine
Patent number
10,570,739
Issue date
Feb 25, 2020
Robert A Grisar
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Patents Applications
last 30 patents
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Patent Application
CIRCLE ELLIPSE ENGINE
Publication number
20180347363
Publication date
Dec 6, 2018
Robert A. Grisar
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES