1
Patrick D Ellis, Billy W Surles: Chemically inert resin coated proppant system for control of proppant flowback in hydraulically fractured wells. Texaco, Kenneth R Priem, James L Bailey, Cynthia L Hunter, February 18, 1997: US05604184 (100 worldwide citation)

Disclosed is an improvement in a method for propping a fracture adjacent a wellbore formed by injecting in said fracture a carrier fluid containing proppant coated with a curable resin which improvement comprises:


2
Patrick D Ellis, Fred A Malicki: Motion translation arrangement for exercise machine. Northland, Andrus Sceales Starke & Sawall, September 22, 1998: US05810701 (57 worldwide citation)

The invention relates to a shoulder press machine having a seat, a backrest and fixed framework at the top of which a carriage is mounted. The carriage has a pair of downwardly and forwardly extending, diverging lever arms which are tied together and moved upwardly and downwardly along a major horiz ...


3
Patrick D Ellis, Troy V Waldron: Dual weight stack exercising machine with coupling arrangement. Northland, Andrus Sceales Starke & Sawall, April 13, 2004: US06719672 (41 worldwide citation)

A weight stack adjusting mechanism is provided for an exercise machine having a frame, an operating mechanism movably connected to the frame, a resisting structure on the frame and a connecting device entrained about a first pulley and a second pulley. Both pulleys are mounted on the frame and join ...


4
Patrick D Ellis, Fred A Malicki: Multi-function exercise machine. Northland, Andrus Sceales Starke & Sawall, October 16, 2001: US06302833 (38 worldwide citation)

An exercise machine includes a frame, a seat adjustably mounted on the frame, and a rest attached to the frame rearwardly of the seat for supporting the upper torso of an exerciser. A lever arm assembly includes a pair of lever arms movably connected relative to the frame about at least one horizont ...


5
Patrick D Ellis: Low impact walking/jogging exercise machine. Northland, Andrus Sceales Starke & Sawall, July 6, 2004: US06758790 (35 worldwide citation)

A walking/jogging exercise machine includes a frame supported upon a generally horizontally extending floor, and a main driveshaft mounted for rotation on the frame. A pair of cams is mounted for rotation on the driveshaft, and a pair of first track assemblies is fixed to the frame. A pair of second ...


6
Patrick D Ellis: Seated stepper. Northland, Andrus Sceales Starke & Sawall, August 23, 2005: US06932745 (27 worldwide citation)

The seated stepper is provided for exercising the lower body. The stepper includes a frame having opposite sides and a longitudinal axis, and a seat attached to the frame. First and second foot lever arrangements are pivotally coupled together on opposite sides of the frame to move alternately in fo ...


7
Patrick D Ellis: Seated abdominal exercise machine. Northland, Andrus Sceales Starke & Sawall, February 13, 2001: US06186926 (26 worldwide citation)

A seated abdominal exercise machine includes a frame, a seat mounted to the frame and a backrest attached to the frame rearwardly of the seat. An arm and head support assembly is mounted for rotary movement to the frame and provides a resistance adapted to be moved by an exerciser occupied in the se ...


8
Patrick D Ellis, Fred A Malicki: Recumbent stepper with independently movable upper and lower body lever arrangements. Northland, Andrus Sceales Starke & Sawall, September 14, 2004: US06790162 (21 worldwide citation)

A recumbent stepper is provided for exercising the lower body and the upper body and includes a frame and a seat attached to the frame. First and second lower body lever arrangements are pivotally coupled to the frame to move in first and second opposite directions and are adapted to be engaged by a ...


9
Scott D Hall, Cal Crawley, Danny F Sullivan, Patrick D Ellis, Glen M Kniffin: Ported sub treatment system. Texaco, Morris N Reinisch, Howrey Simon Arnold & White, September 11, 2001: US06286600 (17 worldwide citation)

A ported sub treatment system in which well treatment materials are pumped into an uncased portion of a well through a jointed tubing string having a number of holes at specific locations along its length such that these materials are able to be distributed as desired by the operator, through these ...


10
Patrick D Ellis: Walking/jogging exercise machine with articulated cam follower arrangement. Northland, Andrus Sceales Starke & Sawall, September 22, 2009: US07591761 (12 worldwide citation)

A walking/jogging exercise machine includes a machine frame supported upon a generally horizontally extending floor. A shaft is mounted for rotation on the machine frame, and a pair of cams is mounted for rotation on the shaft. A pair of movable track assemblies has rear portions with rear ends pivo ...