Howell Instruments, Inc.

Also on record

Records under this name other than patents Howell Instruments, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.

Showing 1 to 8 of 8 · Back to Howell Instruments, Inc.

Patent	Title	Status	Expires	Confidence
US 7,031,812	System and method for monitoring aircraft engine health and determining engine power available, and applications thereof Term ended Term ended Mar 15, 2024 · From the USPTO record	Term ended	Term ended Mar 15, 2024	From the USPTO record
US 3,930,742	Velocity probe for compressor surge control Term ended Term ended no later than Jan 6, 1996 · Low confidence	Term ended	Term ended no later than Jan 6, 1996	Low confidence
US 4,031,366	Low cycle fatigue damage counter Term ended Term ended no later than Jun 21, 1997 · Low confidence	Term ended	Term ended no later than Jun 21, 1997	Low confidence
US 4,821,216	Multifunction meter for use in an aircraft Term ended Term ended no later than Apr 11, 2009 · Low confidence	Term ended	Term ended no later than Apr 11, 2009	Low confidence
US 4,884,171	Electromagnetic interference shielding device for a portable aircraft engine tester Term ended Term ended no later than Nov 28, 2009 · Low confidence	Term ended	Term ended no later than Nov 28, 2009	Low confidence
US 4,954,974	Turbine engine fan speed monitor Term ended Term ended no later than Sep 4, 2010 · Low confidence	Term ended	Term ended no later than Sep 4, 2010	Low confidence
US 5,003,818	Aircraft brake tester Term ended Term ended no later than Apr 2, 2011 · Low confidence	Term ended	Term ended no later than Apr 2, 2011	Low confidence
US 5,018,069	Reference system and method for diagnosing aircraft engine conditions Term ended Term ended no later than May 21, 2011 · Low confidence	Term ended	Term ended no later than May 21, 2011	Low confidence