Cecil E. Covington — 13 Patents at Bell Helicopter Textron

Cecil E. Covington has been granted 13 US patents while listed as an inventor at Bell Helicopter Textron. The first was granted in 1981 and the most recent in December 2006. Cecil E. Covington ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list Cecil E. Covington in Hurst, TX, US.

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
7153094	Rotor system vibration absorber	Ajay Sehgal, Michael R. Smith, Frank B. Stamps, Bryan Marshall	2006-12-26	$27,007,000
6764280	Multi-bladed tail rotor hub design for coriolis relief	Ajay Sehgal, David A. Haynie, Joseph John Zierer, Eric Boyle	2004-07-20	$18,952,000
6616095	Coupled aircraft rotor system	Frank B. Stamps, James L. Braswell, Jr., David A. Popelka, Richard Bennett, Thomas B. Settle, Jr. +1 more	2003-09-09	$40,819,000
5868351	Rotor blade stowing system	Frank B. Stamps, Joe J. Zierer, Charles L. Baskin, Glenn Alan Shimek	1999-02-09	$71,361,000
5647726	Rotor system vibration absorber	Ajay Sehgal, Mithat Yuce, Bryan Marshall	1997-07-15	$47,030,000
5358381	Yoke for helicopter rotor systems	Timothy Kent Ledbetter, Ernest Powell, Madison K. Robinson, Ajay Sehgal, Patrick R. Tisdale	1994-10-25	$3,050,000
5074753	Rotor blade	Ernst C. Schellhase, Madison K. Robinson	1991-12-24	$5,516,000
5031858	Apparatus and method for folding and locking rotor blades	Ernst C. Schellhase, Dan Anastas, deceased, by Peggy Anastas, executrix, Paul E. Keefer, Joseph John Zierer +1 more	1991-07-16	$3,962,000
4427340	Soft inplane bearingless helicopter rotor	Robert W. Metzger, William D. Neathery, Peter A. Reyes, Patrick R. Tisdale, Willem Broekhuizen	1984-01-24	$7,019,000
4306837	Bearingless tail rotor for helicopters	Vas H. Brogdon, Richard E. Wheelis	1981-12-22	$5,516,000
4299540	Tail rotor blade	Ronnie L. Martin	1981-11-10	$5,653,000
4257739	Soft inplane helicopter rotor	David Snyder, Walter Gerd Oskar Sonneborn, Wesley L. Cresap	1981-03-24	$8,703,000
4252504	Helicopter blade folding system	David Snyder	1981-02-24	$2,385,000

Cecil E. Covington — 13 Patents

Issued Patents All Time

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