1
David J Litman, Zvi Harel, Edwin F Ullman: Macromolecular environment control in specific receptor assays. Syva Company, Bertram I Rowland, June 23, 1981: US04275149 (627 worldwide citation)

Method and compositions are provided for performing protein binding assays involving a homologous pair consisting of ligand and receptor for the ligand. The method employs a label conjugated to a member of said homologous pair and a uniformly dispersed discontinuous phase of discrete particles in a ...


2
Lester L White: Infrared personnel locator system. Bell Telephone Laboratories Incorporated, John A Caccuro, June 23, 1981: US04275385 (313 worldwide citation)

An infrared personnel locator system using a periodic unique infrared identification code emitted from a battery-powered transmitter unit to identify the person carrying the transmitter unit to an overhead infrared receiver as the person enters the receiver's monitoring zone. The transmitter unit id ...


3
Frank H Hollingsworth, George R Jenkins, John W Kirkpatrick, Lawrence N Mower: Indirect thermal stimulation of production wells. Standard Oil Company, Fred E Hook, June 23, 1981: US04274487 (239 worldwide citation)

A well which is to produce from a heavy oil or tar sands reservoir is thermally stimulated from another well located on the order of 10 to 50 feet away. This adjacent thermal stimulation well can be considered expendable. This thermal stimulation is continued for a number of days, until the hot zone ...


4
Takashi Sakamoto, Akira Itooka: Linear interpolator for color correction. Lackenbach Lilling & Siegel, June 23, 1981: US04275413 (217 worldwide citation)

A linear interpolating method and apparatus for color signals in a memory of a picture reproducing machine, wherein the stored signals are addressed in a three-dimensional fashion and a cubic interpolation unit in the memory is dissected into tetrahedra. It is determined which of these tetrahedra co ...


5
Lawrence L Malcom, F Richard Convery: Prosthetic fixation technique. The Regents of the University of California, Poms Smith Lande & Rose, June 23, 1981: US04274163 (181 worldwide citation)

In order to reduce the incidence of artificial joint failure at the interface where the prosthesis is bonded to the bone by cement, the artificial prosthesis is provided with openings, and is clamped in place to provide a peripheral seal around the end of the bone to which it is being secured. Then ...


6
George R Curtiss: In-line reversing mechanism. Cooper, Wilson Fraser Barker & Clemens, June 23, 1981: US04274304 (162 worldwide citation)

An in-line reversing mechanism for use with hand-held power tools comprises two coaxially juxtaposed epicyclic gear trains having a common carrier which may alternately be locked to or released from an outer cage to accomplish the bidirectional transmission of rotational power. The complete reversin ...


7
Paul S Putnam, Charles F Cowgill, Frank J Di Bella: Mechanized stand handling apparatus for drilling rigs. William H Maxwell, June 23, 1981: US04274778 (148 worldwide citation)

Apparatus for the handling of drill collar and pipe stands and comprised of a hydraulically mechanized "Derrickman" and "Derrick Floor Hand" and associated fingerboard lock bars and all of which are adapted to remote control in the placement of the stands in a derrick, both in alignment with the rot ...


8
Walter B Mueller, Henry G Schirmer, Julian H Schoenberg, Alan S Weinberg: Multi-layer polyester/polyolefin shrink film. W R Grace & Co, John J Toney, William D Lee Jr, Joseph P Harps, June 23, 1981: US04274900 (144 worldwide citation)

The multi-layer polyester/polyolefin shrink film of this invention provides a combination of shrink tension, hot seal strength, sealability, and shrink temperature range heretofore unobtainable in an oriented, monolayer polyolefin material. The preferred film has five layers in which the middle laye ...


9
Lanny L Johnson, Leonard J Bonnell: Surgical instrument. Dyonics, John N Williams, June 23, 1981: US04274414 (144 worldwide citation)

Remote-cutting instrument formed by an inner tube rotating within an outer tube, in which an initial cutting point where portions of the tubes first come together during a cutting cycle is defined at the distal extremity of the sides of the tubes and cutting edges extend from this initial point long ...


10
Robert P Molitor: Golf ball having cellular cover. Questor Corporation, Donald R Bahr, June 23, 1981: US04274637 (141 worldwide citation)

The subject invention relates to a golf ball having a cover which is completely or partially formed from a cellular polymeric material. By incorporating the subject invention into a golf ball structure, it is possible to selectively alter its "feel" characteristics, the physical properties and fligh ...