Johnston; Richard P.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Johnston; Richard P..The latest application filed is for "propeller outer slipstream control system for counter-rotating propellers".

Company Profile

1.14.0

Johnston; Richard P. - Guntersville AL
Johnston; Richard P. - Fulton MI
Johnston; Richard P. - Cincinnati OH
Johnston; Richard P. - Morrow OH
Johnston; Richard P. - Kennewick WA

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Propeller outer slipstream control system for counter-rotating propellers Grant 10,618,633 - Johnston	2020-04-14
Method and apparatus for producing liquified natural gas Grant 6,269,656 - Johnston August 7, 2	2001-08-07
Simple method and apparatus for the partial conversion of natural gas to liquid natural gas Grant 6,085,547 - Johnston July 11, 2	2000-07-11
Method and apparatus for the partial conversion of natural gas to liquid natural gas Grant 6,085,546 - Johnston July 11, 2	2000-07-11
Liquid natural gas system with an integrated engine, compressor and expander assembly Grant 6,085,545 - Johnston July 11, 2	2000-07-11
System and method of controlling thrust forces on a thrust bearing in a rotating structure of a gas turbine engine Grant 5,735,666 - Johnston April 7, 1	1998-04-07
Variable-cycle reciprocating internal combustion engine Grant 5,058,536 - Johnston October 22, 1	1991-10-22
Method and apparatus for supplying compressed air to auxiliary systems of a vehicle Grant 5,039,281 - Johnston August 13, 1	1991-08-13
Variable-cycle reciprocating internal combustion engine Grant 4,856,463 - Johnston August 15, 1	1989-08-15
Turbine arrangement Grant 4,433,955 - Johnston February 28, 1	1984-02-28
Stirling Engine Power System And Coupler Grant 3,822,388 - Martini , et al. July 2, 1	1974-07-02
Energy Converter To Power Circulatory Support Systems Grant 3,788,772 - Noble , et al. January 29, 1	1974-01-29

Company Registrations

SEC

0001123881

JOHNSTON RICHARD P

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