Inventor
Richard P. Johnston
Inventor
Morrow, OH, US
Overview
Patents· 16 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F01Dprimary
F01DNon-positive displacement machines or engines, e.g. steam turbines18%
F25JLiquefaction, solidification or separation of gases or gaseous or liquefied gaseous mixtures by pressure and cold treatment or by bringing them into the supercritical state12%
Y02TClimate change mitigation technologies related to transportation9%
A61BDiagnosis6%
A61HPhysical therapy apparatus, e.g. devices for locating or stimulating reflex points in the body6%
F01BMachines or engines, in general or of positive-displacement type, e.g. steam engines6%
F02BInternal-combustion piston engines6%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants6%
F16HGearing6%
G10KSound-producing devices6%
PatentTitleYear
10,618,633Propeller outer slipstream control system for counter-rotating propellers20209,566,209'Shock wave electrodes with fluid holes'20179,198,825'Increase electrode life in devices used for extracorporeal shockwave therapy (ESWT)'20157,464,825'Pressure resistant base'20086,269,656'Method and apparatus for producing liquified natural gas'20016,085,546'Method and apparatus for the partial conversion of natural gas to liquid natural gas'20006,085,545'Liquid natural gas system with an integrated engine, compressor and expander assembly'20006,085,547'Simple method and apparatus for the partial conversion of natural gas to liquid natural gas'20005,735,666'System and method of controlling thrust forces on a thrust bearing in a rotating structure of a gas turbine engine'19985,058,536'Variable-cycle reciprocating internal combustion engine'19915,039,281'Method and apparatus for supplying compressed air to auxiliary systems of a vehicle'19914,856,463'Variable-cycle reciprocating internal combustion engine'1989RE032238'Turbine arrangement'19864,433,955'Turbine arrangement'19844,329,114'Active clearance control system for a turbomachine'19824,102,603'Multiple section rotor disc'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–1998Patents assigned to GEN ELECTRIC (4)· patent assignee history
1982Patents assigned to NASA (1)· patent assignee history
1982–1991Based in Morrow, OH, US· patent location history
1989–2020Patents assigned to JOHNSTON RICHARD P (3)· patent assignee history
2000–2001Based in Fulton, MS, US· patent location history
2008Patents assigned to GRAHAM PACKAGING CO (1)· patent assignee history
2008Based in Toledo, OH, US· patent location history
2015–2017Patents assigned to SANUWAVE INC (2)· patent assignee history
2015–2017Based in Canton, GA, US· patent location history
2020Based in Guntersville, AL, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GEN ELECTRIC | 4 | 1978–1998 |
| JOHNSTON RICHARD Pself | 3 | 1989–2020 |
| SANUWAVE INC | 2 | 2015–2017 |
| GRAHAM PACKAGING CO | 1 | 2008 |
| NASA | 1 | 1982 |
Locations
| Location | Patents | Span |
|---|---|---|
| Morrow, OH, US | 6 | 1982–1991 |
| Fulton, MS, US | 4 | 2000–2001 |
| Canton, Georgia, US | 2 | 2015–2017 |
| Guntersville, AL, US | 1 | 2020 |
| Toledo, OH, US | 1 | 2008 |