1
Kazi Mobin Uddin: Embolus trap. Buell Ziesenheim Beck & Alstadt, February 17, 1987: US04643184 (411 worldwide citation)

The device comprises a plurality of elongated filamentary loops extending outwardly from a central column in one or more tiers, the filaments having hooks backed by offset barriers at their free ends. The column is preferably hollow. The device is inserted into a passageway such as a vein with the l ...


2
Alan P Zabarsky, Suzette D Steiger, Edward F Staiano, Jerry L Sandvos: Two way personal message system with extended coverage. Motorola, Raymond A Jenski, Donald B Southard, February 17, 1987: US04644351 (393 worldwide citation)

A communications system for carrying messages via a radio channel between one central site of a plurality of central sites and a plurality of two-way remote data units is disclosed. Each central site has a radio coverage area and each remote unit has a unique address and association with one of the ...


3
Arye Rosen, Paul Walinsky: Percutaneous transluminal microwave catheter angioplasty. RCA Corporation, Joseph S Tripoli, Robert L Troike, William H Meise, February 17, 1987: US04643186 (292 worldwide citation)

Percutaneous transluminal electromagnetic (EM) catheter angioplasty is performed using radio frequency (RF) or microwave frequency power. The catheter includes a coaxial transmission line terminated at its distal end in an antenna. The antenna includes an extension of the coaxial center conductor pa ...


4
Frederick D George, Jeffrey M Jaffe, Franklin H Moss: Automatic update of topology in a hybrid network. International Business Machines Corporation, Pollock Vande Sande & Priddy, February 17, 1987: US04644532 (272 worldwide citation)

The disclosure provides improvements in effecting the routing function in a communication network operating under a distributed control protocol. Selected nodes (control nodes) have extended memory and computing capabilities and each maintains a topology data base, other nodes (ordinary nodes) have ...


5
Harold J Vinegar, Monroe H Waxman: In-situ method for determining pore size distribution, capillary pressure and permeability. Shell Oil Company, February 17, 1987: US04644283 (244 worldwide citation)

An in-situ method of determining the pore size distribution, capillary pressure curve, and permeability of a formation using induced polarization logging measurements. The induced polarization (IP) voltage decay curve is measured opposite the formation of interest and the voltage decay curve is deco ...


6
Hanns Pietsch, Holger Kartheus, Helmut Reul: Heart valve prosthesis. Beiersdorf Aktiengesellschaft, Sprung Horn Kramer & Woods, February 17, 1987: US04643732 (202 worldwide citation)

A heart valve prosthesis with a valve housing in the form of a ring and a curved valve which is mounted within the housing and which is hinged to the valve ring by means of a flat flexible small lug which, if appropriate, is drawn in one region through a slot in the valve ring, is characterized in t ...


7
Michael Mintz: Apparatus for implementing a standardized skin incision. W T Associates, Arthur L Plevy, February 17, 1987: US04643189 (193 worldwide citation)

There is disclosed apparatus for implementing a standardized skin incision which apparatus includes a housing having a base containing an elongated slot. The base is adapted to be held flush against a patient's skin prior to making an incision. The housing has an internal hollow which contains a mov ...


8
Akhileshwari N Chandra, Liam D Comerford, Steve R White: Implementing a shared higher level of privilege on personal computers for copy protection of software. International Business Machines Corporation, Jack M Arnold, February 17, 1987: US04644493 (188 worldwide citation)

Method and apparatus which restricts software, distributed on magnetic media, to use on a single computing machine. The original medium is functionally uncopyable, until it is modified by the execution of a program stored in a tamper proof co-processor which forms a part of the computing machine. Th ...


9
John J Nastari, Walter C Cotter: Surgical wire and method for the use thereof. Fabco Medical Products, Salter & Michaelson, February 17, 1987: US04643178 (179 worldwide citation)

A surgical wire and a method for the use thereof for interconnecting adjacent portions of bone structures are disclosed. The wire is preferably made of a flexible and malleable corrosion-resistant metal, such as a surgical grade of stainless steel, and it includes a main portion, a tapered portion w ...


10
Chialin Wu: Full duplex frequency division multiplex communication system. Keith D Beecher, February 17, 1987: US04644526 (176 worldwide citation)

A full duplex frequency division multiplex communication system which comprises a number of transceivers constituting user stations which communicate with one another over a common channel, such as a wireless link or a two-direction coaxial cable, with each transceiver operating on a single fixed in ...