1
Shmuel Cabilly, Herbert L Heyneker, William E Holmes, Arthur D Riggs, Ronald B Wetzel: Recombinant immunoglobin preparations. Genentech, March 28, 1989: US04816567 (2618 worldwide citation)

Altered and native immunoglobulins, including constant-variable region chimeras, are prepared in recombinant cell culture. The immunoglobulins contain variable regions which are immunologically capable of binding predetermined antigens. Methods are provided for refolding directly expressed immunoglo ...


2
Michael A Boss, John H Kenten, John S Emtage, Clive R Wood: Multichain polypeptides or proteins and processes for their production. Celltech, Cushman Darby & Cushman, March 28, 1989: US04816397 (797 worldwide citation)

Multichain polypeptides or proteins and processes for their production in cells of host organisms which have been transformed by recombinant DNA techniques. According to a first aspect of the present invention, there is provided a process for producing a heterologous multichain polypeptide or protei ...


3
Donald M Cohen, James E Barcel, Michael D Hooven: Implantable blood oxygen sensor and method of use. Siemens Pacesetter, Bryant R Gold, Leslie S Miller, March 28, 1989: US04815469 (391 worldwide citation)

An implantable medical sensor (42) determines the oxygen content of blood. The sensor includes a miniaturized hybrid circuit (130) that includes light-emitting diode means (32), phototransistor means (34, 36), and a substrate (110) to which the light-emitting diode means and phototransistor means ar ...


4
William J McKenna, Kenneth W Silvers, Rand B Nickerson, Russell J Welsh, Harold R Walker, Joseph A Cullity, Bohdan Stryzak: Television and market research data collection system and method. Control Data Corporation, Irell & Manella, March 28, 1989: US04816904 (386 worldwide citation)

A data gathering system includes a plurality of remote units which are controlled from a central location. Each of the remote units is attached to a television receiver which is generally but not necessarily attached to a cable system. Each of the remote units can function to determine which of seve ...


5
Ashileshwari N Chandra, Liam D Comerford, Steve R White: Software protection system using a single-key cryptosystem, a hardware-based authorization system and a secure coprocessor. International Business Machines, Pollock Vande Sande & Priddy, March 28, 1989: US04817140 (367 worldwide citation)

The invention provides a software asset protection mechanism which is based on the separation of the software to be protected from the right to execute that software. Protected software can only be executed on composite computing systems in which a physically and logically secure coprocessor is asso ...


6
Maynard E Small: Automated marketing and gaming systems. Litman McMahon & Brown, March 28, 1989: US04815741 (359 worldwide citation)

An apparatus and method for automated marketing and gaming wherein a player inserts an identification card into an automated remote interface device and accesses an account at a subject financial institution. The user identifier provides access to the financial account, and a user indicia is compare ...


7
Roger H Tu, Edwin Wang: Multi-layered poly(tetrafluoroethylene)/elastomer materials useful for in vivo implantation. Baxter International, Michael C Schiffer, Richard L Myers, W Dennis Drehkoff, March 28, 1989: US04816339 (334 worldwide citation)

Biologically compatible materials capable of being formed into implants, comprising layers of poly(tetrafluoroethylene) and mixtures of poly(tetrafluoroethylene) and elastomer, having excellent compliance, strength, elasticity and suturability are disclosed. The materials are preferably prepared as ...


8
Yves P C A Cotrel: Device for supporting the rachis. Societe de Fabrication de Materiel Orthopedique, Fisher Christen & Sabol, March 28, 1989: US04815453 (271 worldwide citation)

The invention relates to a device for supporting the rachis comprising at least one pin and at least two anchoring members attached thereto. According to the invention, said device is characterized in that the pin is of constant cross-section throughout its length and presents a rough surface, and i ...


9
Kurt Tiefenthaler, Walter Lukosz: Optical sensor for selective detection of substances and/or for the detection of refractive index changes in gaseous, liquid, solid and porous samples. Oerlikon Buhrle Holding, Ladas & Parry, March 28, 1989: US04815843 (217 worldwide citation)

The optical sensor for the detection of specific substances and refractive index changes in gaseous, liquid, solid and porous samples is composed of integrated optical elements. It consists of a waveguiding film (1) equipped with a diffraction grating (4) and applied onto a substrate (2). For the se ...


10
Eric Paneth, Mark J Handzel, Steven A Morley, Graham M Avis: Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels. International Mobile Machines Corporation, Arthur A Jacobs, March 28, 1989: US04817089 (207 worldwide citation)

A system for the wireless transmission of multiple information signals utilizing digital time division circuits between a base station and a plurality of subscriber stations. The subscriber stations may be fixed or movable. The number of time division circuits is determined by the transmission quali ...



Click the thumbnails below to visualize the patent trend.