Stephen R. Speer — 19 Patents at Nautical Development

Stephen R. Speer has been granted 19 US patents while listed as an inventor at Nautical Development. The first was granted in 1983 and the most recent in June 2024. Stephen R. Speer ranks #229,345 of 4,157,543 US inventors in our database (top 5.5%). Patent records list Stephen R. Speer in Coeur d'Alene, ID, US.

Issued Patents All Time

Showing 1–19 of 19 patents

Patent #	Title	Co-Inventors	Date
12012891	Aircraft turboprop engine inlet compact profile configuration to improve air intake efficiency and without loss of anti-icing ability	Alexlander J. Duncan, Jayme S. Bartlett, George R. Kemner	2024-06-18
10737773	Aircraft winglet design having a compound curve profile	—	2020-08-11
10053209	Aircraft winglet design having a compound curve profile	—	2018-08-21
9120562	Aircraft winglet design having a compound curve profile	—	2015-09-01
5549455	Through the hub exhaust flow improvements for marine variable pitch propeller	—	1996-08-27
5368442	Automatic variable discrete pitch marine propeller	—	1994-11-29
5326223	Automatic variable pitch marine propeller with mechanical holding means	—	1994-07-05
5240374	Damped automatic variable pitch marine propeller	—	1993-08-31
5129785	Automatic variable discrete pitch marine propeller	—	1992-07-14
5076220	Internal combustion engine	Hugh G. Evans	1991-12-31
5032057	Automatic variable pitch marine propeller	—	1991-07-16
5012646	Turbine engine having combustor air precooler	—	1991-05-07
4947806	Engine breather oil recovery system	Jan G. Norton, James D. Wilson	1990-08-14
4929153	Self-actuating variable pitch marine propeller	—	1990-05-29
4483147	Turbocharged engine having an engine speed and throttle position responsive compressor bleed valve	Hugh G. Evans, James A. Christy	1984-11-20
4469078	Aircraft engine-turbocharger package with bleed valve control	Hugh G. Evans, James S. Christy	1984-09-04
4428550	Vibration-insulating stability improving torque force device	Hugh G. Evans, James S. Christy	1984-01-31
4424781	Modified control linkage for supercharged inlet air to internal combustion engine	Hugh G. Evans	1984-01-10
4399665	Aircraft air conditioning system	Hugh G. Evans, James S. Christy, Stanley S. Lafrenz	1983-08-23

Stephen R. Speer — 19 Patents

Issued Patents All Time

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