1
Edward A Gahan, Keith W Molyneux, Kenneth Schofield: Rearview mirror control circuit. Donnelly Corporation, Price Heneveld Cooper DeWitt & Litton, December 27, 1988: US04793690 (473 worldwide citation)

The specification discloses an automatic rearview mirror control circuit which models the physiological response of the human eye to fluctuating light levels as observed in typical driving conditions. The control circuit calculates an ambient light signal representative of light levels within the dr ...


2
Julio C Palmaz: Balloon expandable vena cava filter to prevent migration of lower extremity venous clots into the pulmonary circulation. Pravel Gambrell Hewitt Kimball & Krieger, December 27, 1988: US04793348 (403 worldwide citation)

A vena cava filter for preventing migration of venous clots into the pulmonary circulation is disclosed. The filter comprises a tubular body, the wall surface of which is partitioned by a pattern of slots into a latticework to render the tubular body radially expandable; a head piece affixed to the ...


3
William N Borkan: Non-invasive multiprogrammable tissue stimulator and method. Barnes & Thornburg, December 27, 1988: US04793353 (322 worldwide citation)

An electronic tissue stimulator system is provided comprising a plurality of electrodes to be implanted adjacent tissue to be stimulated in a patient. A transmitting means transmits stimulation pulses for stimulating the electrodes and programming data defining which of the electrodes are to be stim ...


4
John A Ewen: Hafnium metallocene catalyst for the polymerization of olefins. Fina Technology, John K Abokhair, Stuart L Watt, M Norwood Cheairs, December 27, 1988: US04794096 (312 worldwide citation)

The present invention provides a catalyst system for the polymerization and copolymerization of olefins with the system comprising a chiral, stereorigid hafnium metallocene catalyst in combination with an aluminum compound. The aluminum compound is preferably an alumoxane and may be a mixture of alu ...


5
David C Allais: Multitrack bar code and associated decoding method. Intermec Corporation, Seed and Berry, December 27, 1988: US04794239 (294 worldwide citation)

A multitrack bar code and associated decoding method. Data are encoded into a multitrack bar code according to numerical values which correspond to the characters composing the data. The numerical values are combined into words and corresponding binary strings are chosen, the parity of each binary s ...


6
Mark S Zifcak, Bruce G Kosa: Electrical circuit board interconnect. Rogers Corporation, December 27, 1988: US04793814 (277 worldwide citation)

A connector arrangement for providing electrical interconnection between coresponding contact pads of opposed first and second circuit boards includes an electrically nonconductive support member disposed between the boards, a bodily-rotatable, electrically conductive interconnect element extending ...


7
John D Benjamin, Adrian L Mears, John C White: Active silicon implant devices. The Secretary of State for Defence in Her Britannic Majesty s Government of the United Kingdom and Northern Ireland, Cushman Darby & Cushman, December 27, 1988: US04793825 (266 worldwide citation)

A medical implant for injecting into the vascular system of animals comprises a device less than 500 .mu.m in size carrying signal processing means for providing an output in response to an input signal. The input may be acoustic, electromagnetic, temperature, pH value, or chemical. The output may b ...


8
Carter W Kaanta, Michael A Leach: In situ conductivity monitoring technique for chemical/mechanical planarization endpoint detection. IBM Corporation, Sughrue Mion Zinn Macpeak & Seas, December 27, 1988: US04793895 (225 worldwide citation)

An apparatus and method for monitoring the conductivity of a semiconductor wafer during the course of a polishing process. A polishing pad that contacts the wafer has an active electrode and at least one passive electrode, both of which are embedded in the polishing pad. A detecting device is connec ...


9
Ronald W Ausherman, Richard A Burkholder: Biopsy needle. Sherwood Medical Company, Stanley N Garber, Andrew J Beck, William R O Meara, December 27, 1988: US04793363 (201 worldwide citation)

A bone marrow biopsy device is provided that includes a cannula member and a stylet member each having arcuate handles having a length greater than the width thereof, a luer lock connector, and a handle locking arrangement. The cannula member handle has a recess which receives a collar on the stylet ...


10
Martin G Martz: Removable tooth positioning appliance and method. Julian Caplan, December 27, 1988: US04793803 (195 worldwide citation)

Separate appliances are insertable in and removable from the upper and lower jaws of the patient to correct minor malocclusions. The appliance construction has several modifications but consists essentially of: (a) a fairly rigid portion which mates with or securely grips the tooth surface, (b) a ri ...



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