RJ

Richard P. Johnston

GE: 4 patents #8,224 of 36,430Top 25%
OL Oil States Industries (Uk) Limited: 3 patents #2 of 11Top 20%
SA Sanuwave: 2 patents #6 of 19Top 35%
GC Graham Packaging Company: 1 patents #138 of 234Top 60%
NASA: 1 patents #1,418 of 3,881Top 40%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #233,249 of 4,157,543Top 6%
19
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12043369 Propeller outer slipstream control system for counter-rotating propellers 2024-07-23
12044093 Apparatus and method relating to managed pressure drilling Miguel Fernandes Martins 2024-07-23
11828111 Apparatus and method relating to managed pressure drilling David Symonds, Gordon Wallace, Garry Stephen 2023-11-28
11708727 Connection system for a marine drilling riser Garry Stephen, David Symonds, Gordon Wallace 2023-07-25
10618633 Propeller outer slipstream control system for counter-rotating propellers 2020-04-14
9566209 Shock wave electrodes with fluid holes Venkata Katragadda, David Booth, Cary McGhin, John R. Jackson 2017-02-14
9198825 Increase electrode life in devices used for extracorporeal shockwave therapy (ESWT) Venkata Katragadda, David Booth, Cary McGhin, John R. Jackson 2015-12-01
7464825 Pressure resistant base Doug Struble, Debra Finnigan 2008-12-16
6269656 Method and apparatus for producing liquified natural gas 2001-08-07
6085545 Liquid natural gas system with an integrated engine, compressor and expander assembly 2000-07-11
6085546 Method and apparatus for the partial conversion of natural gas to liquid natural gas 2000-07-11
6085547 Simple method and apparatus for the partial conversion of natural gas to liquid natural gas 2000-07-11
5735666 System and method of controlling thrust forces on a thrust bearing in a rotating structure of a gas turbine engine 1998-04-07
5058536 Variable-cycle reciprocating internal combustion engine 1991-10-22
5039281 Method and apparatus for supplying compressed air to auxiliary systems of a vehicle 1991-08-13
4856463 Variable-cycle reciprocating internal combustion engine 1989-08-15
RE32238 Turbine arrangement 1986-09-02
4433955 Turbine arrangement 1984-02-28
4329114 Active clearance control system for a turbomachine Malcolm H. Knapp, Charles E. Coulson 1982-05-11