Ernst W Loebach, Harry L Sawatzki: Projection mask as well as a method and apparatus for the embedding thereof and projection printing system. Censor Patent und Versuchsanstalt, Martin A Farber, June 28, 1983: US04390273 (402 worldwide citation)

A projection mask and method and apparatus for production thereof comprising a substrate carrying a mask thereon, a cover glass covering the pattern mask and sealed at peripheral edges thereof to the substrate defining a space between the substrate with the mask and the cover glass. A particle-free ...

Tuomo S Suntola, Arto J Pakkala, Sven G Lindfors: Apparatus for performing growth of compound thin films. Oy Lohja, Fitzpatrick Cella Harper & Scinto, June 28, 1983: US04389973 (363 worldwide citation)

A method and an apparatus are provided for performing growth of compound thin films by alternately repeating separate surface reactions of the substances comprising the compound. A carrier gas affects a diffusion barrier between the surface reaction steps to be separated from each other. The gas pha ...

Bertram T Willman: Method of treating reservoirs containing very viscous crude oil or bitumen. Exxon Production Research Co, E T Wheelock, June 28, 1983: US04390067 (340 worldwide citation)

A method for treating a field containing viscous oil or bitumen for subsequent production is described. The steps central to the process are drilling a horizontal well within the oil-bearing stratum, and heating the oil in the vicinity of the horizontal well to produce a hot liquid corridor. The ope ...

Edmond Keiser: Method and apparatus for controlling the operation of a television signal receiver. Darby & Darby, June 28, 1983: US04390901 (291 worldwide citation)

A method and apparatus for controlling the operation of a video recorder to enable it to record selected types of programs is disclosed. A code signal representing information with respect to the type of program is provided at the transmitter and inserted into the vertical blanking gap of the televi ...

J Samuel Batchelder: Method and apparatus for dielectrophoretic manipulation of chemical species. Parmelee Bollinger & Bramblett, June 28, 1983: US04390403 (282 worldwide citation)

The present invention provides method and apparatus for manipulating one or more chemicals within a reaction chamber or housing by dielectrophoretic forces. At least two materials, one of which is a chemical to be manipulated, are provided within the housing. The materials have different dielectric ...

Robert Bauer: Method and device for detecting glucose concentration. Miles Laboratories, James D McNeil, June 28, 1983: US04390621 (249 worldwide citation)

A method and test device for determining the glucose concentration in a test sample containing from 1/2 to 10 percent glucose are disclosed. The method and test device involve impregnating the carrier with an enzymatic testing composition which includes glucose oxidase, peroxidase and a chromogen. T ...

Alfred R Merritt, Theodore M Cooke, An Chung R Lin, Richard G Whitfield: Natural wax-containing ink jet inks. Exxon Research and Engineering Co, Robert S Salzman, June 28, 1983: US04390369 (230 worldwide citation)

A natural wax-containing ink jet ink for use in an ink jet apparatus which features good print quality. The ink jet ink is discharged from the ink jet ink apparatus at elevated temperatures above ambient.

John A Bond, Yuan Lu Li, Leslie J Crane: Scrambling and unscrambling video signals in a pay TV system. Northern Telecom, R Haley Haley, June 28, 1983: US04390898 (203 worldwide citation)

A scrambler scrambles a video signal by replacing its vertical intervals with dummy video signal lines, and separately providing information relating to the timing of the replaced vertical intervals. This information is encoded using an encryption key and is distributed with the scrambled video sign ...

Eike Rietsch: Method for determining the extent of subsurface reaction involving acoustic signals. Deutsche Texaco Aktiengesellschaft, Carl G Ries, Robert A Kulason, Ronald G Gillespie, June 28, 1983: US04390973 (171 worldwide citation)

A method determines the extent of subsurface reactions in which random acoustic signals are radiated from a whole area covered by the reaction or from a boundary region, hereafter termed reaction front, between largely undisturbed rocks and those already covered by the reaction. The signals are reco ...

Howard R Johnston, Michael E R V Koombes: Automatic circuit and method for editing commercial messages from television signals. Shelton Video Editors, Christensen O Connor Johnson & Kindness, June 28, 1983: US04390904 (164 worldwide citation)

In order to delete commercial messages during the viewing and/or video tape recording of broadcast television signals a control circuit is disclosed for producing a commercial editing control signal at the beginning of one or more television commercial messages, which signal continues for the durati ...