Dominik M Wiktor: Intravascular radially expandable stent and method of implant. Medtronic, Robert J Klepinski, Joseph F Breimayer, December 12, 1989: US04886062 (1306 worldwide citation)

A device to be used as a vascular stent comprising a cylindrical open-ended wire component made of a low memory metal such as copper alloy, titanium, or gold, providing a radial support from within a blood vessel after implantation therein. The coronary stent is characterized by its ability to be ex ...

Giorgio Cirelli, Hans Steffen, Christian Surber: Portable injection appliance. Hoffmann La Roche, Jon S Saxe, Bernard S Leon, A Kate Huffmann, December 12, 1989: US04886499 (439 worldwide citation)

The portable appliance is of use for the subcutaneous or intradermal injection of a liquid formulation of an active principle and it comprises in combination: a supply vessel for the formulation; an injection needle adapted to communicate with the vessel; pump means for emptying the vessel through t ...

Peter Van Meurs, Eric P De Rouffignac, Harold J Vinegar, Michael F Lucid: Conductively heating a subterranean oil shale to create permeability and subsequently produce oil. Shell Oil Company, December 12, 1989: US04886118 (350 worldwide citation)

Shale oil is produced from a subterranean interval of oil shale, where the interval is initially substantially impermeable and contains a specified grade and thickness of oil shale. Said interval is conductively heated from borehole interiors which are kept hotter than about 600.degree. C. and are h ...

Keith W Molyneux, Thomas D Gaffney: Control circuit for an automatic rearview mirror. Donnelly Mirrors, Price Heneveld Cooper DeWitt & Litton, December 12, 1989: US04886960 (320 worldwide citation)

The invention provides an automatic rearview mirror system (10) for a vehicle comprising a reflective element (22) actuatable between at least two different reflective conditions. The system includes a forward light sensor (11) to detect light forward of the vehicle and a rear light sensor (12) to d ...

Donavon W Johnson, Grover H Neuman, Charles H Sauer, Amal A Shaheen Gouda, Todd A Smith: System and method for accessing remote files in a distributed networking environment. International Business Machines Corporation, Marilyn D Smith, December 12, 1989: US04887204 (270 worldwide citation)

A distrbuted services program installed on each of a plurality of data processing systems in a network allows the processors to access data files distrbuted across the various nodes of the network.

Antonio Zamora, Michael D Gunther, Elena M Zamora: Parser for natural language text. International Business Machines Corporation, John E Hoel, December 12, 1989: US04887212 (221 worldwide citation)

An improved natural language text parser is disclosed which provides syntactic analysis of text using a fast and compact technique. Sequential steps of word isolation, morphological analysis and dictionary look-up combined with a complement grammar analysis, are applied to an input data stream of wo ...

Donald R Horne: Cryptographic system for direct broadcast satellite system. Ricoh, Cooper & Dunham, December 12, 1989: US04887296 (206 worldwide citation)

A three key cryptographic system is used in the transmission of digitized signals to a plurality of receivers, each having a unique address number and a factory stored signature key which is a function of the address number. At the transmission end, a common key is generated and used to encrypt the ...

Robert E Fischell, Tim A Fischell: Expandable pullback atherectomy catheter system. MedInnovations, December 12, 1989: US04886061 (203 worldwide citation)

Disclosed is an Expandable Pullback Atherectomy Catheter (EPAC) comprising a distal tip portion capable of assuming two diameters. The distal tip portion includes an expandable cutting means and an expandable tissue collecting means. The catheter is guided in an artery to the stenosis and the distal ...

Thomas J Palermo: Steerable guidewire with soft adjustable tip. C R Bard, Wolf Greenfield & Sacks, December 12, 1989: US04886067 (201 worldwide citation)

A steerable guidewire for guiding a catheter includes an elongate hollow shaft having a distal core wire mounted at its distal end. The distal core wire tapers in a distal direction and has a flexible distral tip. The core wire is received within a helical coil mounted to the distal end of the guide ...

Kenneth A Felix: Packet-switched cellular telephone system. Motorola, Rolland R Hackbart, December 12, 1989: US04887265 (196 worldwide citation)

A unique packet-switched cellular telephone system includes a cellular switch (140) and base sites (110) for providing packet-switched data services to cellular data telephones (102). Cellular switch (140) includes packet access points (152, 153) coupled to a packet network and T1 span lines (160, 1 ...

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