1
Bob Ware
Nai Y Chen, Thomas F Degnan Jr, Clinton R Kennedy, Anil B Ketkar, Leonard R Koenig, Robert A Ware: Catalytic cracking of paraffinic feedstocks with zeolite beta. Mobil Oil Corporation, Alexander J McKillop, Charles J Speciale, Malcolm D Keen, March 27, 1990: US04911823 (37 worldwide citation)

Heavy hydrocarbon oils of high paraffin content are catalytically cracked using zeolite beta. The paraffin content of the oil is at least 20 weight percent or higher. The gasoline cracking products have a high octane rating and the higher boiling products a decreased pour point resulting from the de ...


2
Casey K Lee, Noshir A Langrana, Harold Alexander, Alastair J Clemow, Elizabeth H Chen, John R Parsons: Functional and biocompatible intervertebral disc spacer. University of Medicine & Dentistry of N J, Rutgers University, Johnson & Johnson, Klauber & Jackson, March 27, 1990: US04911718 (546 worldwide citation)

The construction and manufacturing technique for a functional biocompatible intervertebral disc spacer is described. This device is useful for a replacement for a degenerated disc in certain treatments of back pain and spinal disease. The disc spacer possesses mechanical properties akin to those of ...


3
John W Parce, Robert F Zuk: Measuring with zero volume cell. Molecular Devices Corporation, Allegretti & Witcoff, March 27, 1990: US04911794 (414 worldwide citation)

Methods and apparatuses are described for determining the presence of an analyte in a sample suspected of containing the analyte. The method comprises contacting a concentrate of a determinable element capable of being detected by means of a semiconductive electrode with the electrode in the presenc ...


4
James E Corenman, Robert T Stone, Andras Boross, Deborah A Briggs, David E Goodman: Method and apparatus for detecting optical pulses. Nellcor Incorporated, Robert M Isackson, March 27, 1990: US04911167 (393 worldwide citation)

A method and apparatus for improving the calculation of oxygen saturation and other blood constituents by non-invasive pulse oximeters. The method and apparatus permit more accurate determination of blood flow by collecting time-measures of the absorption signal at two or more wavelengths and proces ...


5
Stephen A Sosnowski, Nadhir B Kosa, Steven W Kovalcheck, John H Parrish: Deflectable-end endoscope with detachable flexible shaft assembly. Intramed Laboratories, Freilich Hornbaker & Rosen, March 27, 1990: US04911148 (379 worldwide citation)

An endoscope having a deflectable tip configured so as to have a small outer diameter of approximately 0.15 inch or less. The endoscope includes a flexible shaft subassembly comprised of a conduit having a deflectable end segment at its distal end which can be controlled by a manually operable mecha ...


6
Arthur W Allison III, Joseph A Damoci, William H Forlines, Carl B Gipson, Matthew F Kern, David M Myers: Distributed monitoring system. Control Data Corporation, Frederick W Niebuhr, Robert M Angus, Edward P Heller, March 27, 1990: US04912552 (245 worldwide citation)

A system is disclosed which may be used for collecting television channel tuning data, household purchase data, VCR channel usage data and the like; on site at a plurality of preselected households, wherein the system concentrates and transmits the collected data to a central site in a fault toleran ...


7
Sau Ching Wong, Hock Chuen So, Stanley J Kopec Jr, Robert F Hartmann: Programmable logic device with array blocks with programmable clocking. Altera Corporation, Robert R Jackson, March 27, 1990: US04912342 (221 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
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 27, 1990: US04912705 (211 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 ...


9
Christopher R Sheedy, Stephanie L Kinoshita: Version management tool. Tandem Computers Incorporated, Townsend & Townsend, March 27, 1990: US04912637 (208 worldwide citation)

A system for preserving, generating, and merging different versions of a common module that utilizes a line file storing the text of every line in a version and addressing each line with a unique line identifier. Any desired version may be generated directly without creating intermediate versions. T ...


10
Michael J Sullivan, Terence Melvin, R Dennis Nesbitt: Golf ball cover of neutralized poly(ethylene-acrylic acid) copolymer. Donald R Bahr, March 27, 1990: US04911451 (201 worldwide citation)

An improved golf ball comprising a core and a cover therefor, said cover comprises singularly or blends of a zinc neutralized ethylene-acrylic acid copolymer and a sodium neutralized ethylene-acrylic acid copolymer, or a blend of two or more zinc-neutralized ethylene-acrylic acid copolymers and a so ...