Phillip S. Sizer — 15 Patents at Otis Engineering

Phillip S. Sizer has been granted 15 US patents while listed as an inventor at Otis Engineering. The first was granted in 1981 and the most recent in November 2003. Phillip S. Sizer ranks #307,048 of 4,157,543 US inventors in our database (top 7.4%). Patent records list Phillip S. Sizer in Dallas, TX, US.

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
6648073	Retrievable sliding sleeve flow control valve for zonal isolation control system	Kerry D. Jernigan, Mark Crawford	2003-11-18
6464004	Retrievable well monitor/controller system	Mark Crawford, Kerry D. Jermigan	2002-10-15
5275038	Downhole reeled tubing inspection system with fiberoptic cable	Donald H. Perkins, Robert Arthur Rademaker	1994-01-04	$15,953,000
5205355	Subsurface safety valves and method and apparatus for their operation	Marion H. Gay, Imre I. Gazda	1993-04-27	$11,909,000
5191173	Electrical cable in reeled tubing	Malcolm N. Council, Willard J. Deese, E. G. Hoffman, Robert F. Bailey, David H. Neuroth	1993-03-02	$7,864,000
5170845	Subsurface safety valves and method and apparatus for their operation	Marion H. Gay, Imre I. Gazda	1992-12-15	$14,030,000
4886114	Electric surface controlled subsurface valve system	Donald H. Perkins, Thomas M. Deaton	1989-12-12	$9,083,000
4730677	Method and system for maintenance and servicing of subsea wells	Joseph L. Pearce, John C. Gano, John H. Yonker, Robert L. Thurman, James O'Sullivan +4 more	1988-03-15	$10,070,000
4723606	Surface controlled subsurface safety valve	Michael B. Vinzant, Ronald K. Churchman, Rennie L. Dickson, Roddie R. Smith	1988-02-09	$28,375,000
4583592	Well test apparatus and methods	Imre I. Gazda	1986-04-22	$4,188,000
4515220	Apparatus and method for rotating coil tubing in a well	Don C. Cox, Malcolm N. Council	1985-05-07	$4,829,000
4449587	Surface controlled subsurface safety valves	Charles Rodenberger, Kevin Charles O'Malley	1984-05-22	$5,755,000
RE31313	Method and system for well testing	John V. Fredd	1983-07-19
4258794	Underwater completion habitat	Joseph L. Pearce, Sanford R. Dowden	1981-03-31	$10,669,000
4251176	Well tubing handling apparatus	Malcolm N. Council	1981-02-17	$20,001,000

Phillip S. Sizer — 15 Patents

Issued Patents All Time

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