1
Vladimir Feingold: Implantable medication infusion system. Ladas & Parry, October 3, 1989: US04871351 (816 worldwide citation)

An implantable medication delivery system comprising an implantable unit with a refillable reservoir, a catheter connected thereto, and a pumping mechanism activated by a microcomputer or microprocessor for pumping medication from the reservoir through the catheter into the body. The implantable med ...


2
E Marlowe Goble, W Karl Somers: Ligament anchor system. M Reid Russell, October 3, 1989: US04870957 (548 worldwide citation)

An anchor system that is preferably for use in an arthoscopic cruciate ligament replacement procedure for securing a ligament (37) or (50), or ligament type device, with or without a stint (38), within a prepared ligament tunnel (33). The system includes a pair of threaded footings (11) for turning ...


3
Yasuhiro Nagata, Hidetaka Fujimura: Biosensor. Daiken, Wenderoth Lind & Ponack, October 3, 1989: US04871440 (490 worldwide citation)

The present invention provides a biosensor which is arranged to generate an electric signal corresponding to an object to be measured. The biosensor is provided with a foundation electrode which is comprised of a working electrode, a reference electrode and a counter electrode, and on the surface of ...


4
T Anthony DonMicheal, Robert J Siegel, Eugene A DeCastro: Intravascular ultrasonic catheter/probe and method for treating intravascular blockage. Spensley Horn Jubas & Lubitz, October 3, 1989: US04870953 (336 worldwide citation)

Apparatus and method are disclosed for treating atherosclerotic plaque and thromboses by the application of ultrasonic energy to a site of intravascular blockage. The ultrasonic apparatus includes a solid wire probe having a bulbous tip at one end and coupled to an ultrasonic energy source at the ot ...


5
Francisco B Rivero: Game device including means simulating release of a ball. Recreativus Franco, October 3, 1989: US04871171 (335 worldwide citation)

An auxiliary game for incorporation in a slot machine of the type in which winning combinations of a series of different combinations of symbols are controlled electronically to appear in a group of windows causing a prize to be delivered to an operator. The auxilliary game includes a cage carrying ...


6
Desmond J O Farrell, Kenneth Schofield, Mark L Larson, Karl Heinz Hanft, Kenneth L Schierbeek, Richard D Bentley: Vehicular moisture sensor and mounting apparatus therefor. Donnelly Corporation, Price Heneveld Cooper DeWitt & Litton, October 3, 1989: US04871917 (333 worldwide citation)

A moisture sensing assembly for controlling vehicle accessories such as windshield wipers is mounted on the inner surface of a vehicle window or windshield for detecting moisture on the outer window surface. A plurality of infrared energy emitting diodes and a sensor for receiving reflected infrared ...


7
Sau Ching Wong, Hock Chuen So, Stanley J Kopec Jr, Robert F Hartmann: Programmable logic device with array blocks connected via programmable interconnect. Altera Corporation, Robert R Jackson, October 3, 1989: US04871930 (308 worldwide citation)

A programmable logic device having a relatively small number of programmable product terms ("P-terms") feeding each fixed combinatorial logic device, and additional "expander" programmable P-terms which do not directly feed a fixed device. Relatively simple logic functions can be performed by suitab ...


8
Robert H Dye: Collision avoidance alarm system. Environmental Research Institute of Michigan, Krass & Young, October 3, 1989: US04872051 (254 worldwide citation)

The following invention is a passive collision avoidance alarm system. An optical sensor (which may optionally be visable, infrared or ultraviolet) is disposed to provide a continuous raster scan of the scene within a wide angle of the direction of travel of the vehicle. This sensor output is conver ...


9
Elvin L Hoel: Process for production of a high molecular weight ethylene a-olefin elastomer with a metallocene alumoxane catalyst. Exxon Chemical Patents, M B Kurtzman, October 3, 1989: US04871705 (224 worldwide citation)

Disclosed is a process for preparing high molecular weight ethylene-.alpha.-olefin elastomers, preferably an ethylene-propylene elastomer, by liquid phase polymerization of the requisite monomers in the presence of a metallocene/alumoxane catalyst system. Preferably, the process is carried out as a ...


10
Robert H Frushour: Composite abrasive compact having high thermal stability and transverse rupture strength. Robert B Crouch, October 3, 1989: US04871377 (181 worldwide citation)

A composite compact adapted for high-temperature uses, such as a cutter on a rotary drill bit, which includes a relatively thick table of diamond or boron nitride particles with a strong, chemically inert binder matrix and a thin metal layer bonded directly to the table in a HP/HT press. The table i ...