1
James H Goodson, Millard M Judy, Rex A Moses: Laser smoke evacuation system and method. James H Goodson, H Mathews Garland, April 5, 1988: US04735603 (181 worldwide citation)

A laser smoke evacuation system and method for laser smoke removal from the site of laser laparoscopy in a patient cavity. The system includes a CO.sub.2 gas pump connected through a control valve, a pressure sensor, and a bacterial filter to a laparoscopic tube inserted into the patient, a return l ...


2
Jack W Tamplen, Colby M Ross, Timothy J Noack, Jimmie R Williamson Jr: Locking mandrel for a well flow conductor. Otis Engineering Corporation, H Mathews Garland, August 2, 1983: US04396061 (104 worldwide citation)

In a locking mandrel for releasably locking a well tool in a well flow conductor of the type disclosed in U.S. Pat. No. 3,208,531 which includes a tubular body mandrel adapted for securing with a running tool and with a well tool, a locking dog retainer sleeve on the body mandrel, expandible and con ...


3
Glen A Dixon, Clark E McCloskey, David L Chambers, Woodrow D Hawk, Oliver W McCracken: Well production controller system. Otis Engineering Corporation, H Mathews Garland, January 6, 1987: US04633954 (66 worldwide citation)

A fully programmable system for controlling the operation of one or more gas or oil production wells by controlling the intermittent operation of the wells in response to either programmed information or monitored and measured criteria related to the wells themselves. The system includes battery pow ...


4
James M Barker: Bridge plug. Otis Engineering Corporation, H Mathews Garland, March 13, 1984: US04436150 (64 worldwide citation)

An inner mandrel extends the full length of the bridge plug, and carries a top sub at its upper end for latching engagement with a conventional overshot to retrieve the plug. A tubular outer mandrel is slidably mounted on the inner mandrel for limited axial sliding movement. A partial central bore i ...


5
James P Murphy: Lighting system for artificial Christmas tree. H Mathews Garland, May 7, 1985: US04516193 (63 worldwide citation)

An electrical lighting system for a tree especially adapted to an artificial Christmas tree having removable limbs. The system includes electrical conducting distribution straps or bands which may be wrapped around and secured to a tree trunk at selected levels. Each of the distribution bands has pr ...


6
Rennie L Dickson, Roddie R Smith: Subsurface safety valve with lock-open system. Otis Engineering Corporation, H Mathews Garland, November 25, 1986: US04624315 (61 worldwide citation)

A surface controlled subsurface well safety valve for use in a well tubing string including a flapper valve member, an operator tube for opening the flapper valve member and holding it open, an annular piston on the operator tube operative in response to control fluid pressure conducted from the sur ...


7
Carter R Young: Service seal unit for well packer. Otis Engineering Corporation, H Mathews Garland, December 25, 1979: US04180132 (59 worldwide citation)

A well packer and service seal unit for setting the packer in a well bore and depositing a gravel or slurry pack within the well bore. The packer includes a tubular mandrel connectible with a tubing handling string and adapted to support a gravel pack sand screen below the packer, a setting sleeve, ...


8
Alan T Jackson, Thomas W Ray, Eduardo Alvarez: Seal and seal assembly for well tools. Otis Engineering Corporation, H Mathews Garland, June 28, 1988: US04753444 (55 worldwide citation)

A seal and seal assembly for use with well tools, such particularly as well packers, for sealing the annulus between the well packer mandrel and the wall of a well tubing such as casing. The seal is fabricated of an elastomeric-like material comprising fluorocarbon resins, poly arylene ketone, and c ...


9
Michael B Calhoun, John V Fredd: Well tools. Otis Engineering Corporation, H Mathews Garland, July 10, 1979: US04160478 (55 worldwide citation)

A well tool for inclusion in a tubing string of a well adapted to perform multiple functions including controlling fluid flow through the tubing string and/or cutting coiled tubing or wire line used in the tubing string for performing well completion and workover functions. The tool includes a tubul ...


10
William D Henderson: Packer for high temperature high pressure wells. Otis Engineering Corporation, H Mathews Garland, July 3, 1984: US04457369 (53 worldwide citation)

A well packer for high pressure and temperature use having a tubular mandrel, upper and lower slip assemblies in spaced relation on the mandrel and a high temperature and pressure seal assembly including a plurality of annular elements of different elasticities mounted on the mandrel between the sli ...