1
Stephen C Kenyon, Laura J Simkins, Leroy L Brown, Richard Sebastian: Broadcast signal recognition system and method. Ensco, Sixbey Friedman & Leedom, May 22, 1984: US04450531 (373 worldwide citation)

The method for the automatic electronic recognition of a program unit broadcast by radio waves includes the formation of a plurality of reference signal segments from the program unit and the processing of such segments to obtain digitized reference signal segments which are then normalized and stor ...


2
Bohumir Sramek: Noninvasive continuous cardiac output monitor. BoMed Medical Mfg, Knobbe Martens Olsen & Bear, May 22, 1984: US04450527 (290 worldwide citation)

The invention provides apparatus and methods for using the electrical bioimpedance measurements to monitor parameters associated with blood flow in a segment of body tissue. The invention eliminates the effect of respiration from the thoracic impedance as a function of time to provide a signal indic ...


3
Kenneth R Sidman: Biodegradable, implantable drug delivery depots, and method for preparing and using the same. Arthur D Little, Richard J Hammond, May 22, 1984: US04450150 (281 worldwide citation)

An implantable drug deliver depot comprising a hydrophilic poly(glutamic acid-co-ethyl glutamate) structure having one or more substances, e.g., drugs and/or diagnostic agents physically contained therein. The drug or diagnostic agent is released by its permeation of and diffusion through the copoly ...


4
James A Burns, Edward L Nugent: Automatic retractable lancet assembly. Becton Dickinson and Company, Robert P Grindle, May 22, 1984: US04449529 (272 worldwide citation)

An automatic retractable lancet assembly includes a housing with a sharp-pointed lancet movably mounted therein. A slidable plunger is mounted in the housing in the end thereof opposite from the lancet for loading the assembly prior to use. An actuating mechanism releases the lancet for outward move ...


5
Bruce E Lovett: Television information system. Banner Birch McKie & Beckett, May 22, 1984: US04450477 (255 worldwide citation)

This television information system transmits selected video picture information to one of a number of subscribers who have television sets connected to the system. First, the subscriber makes a selection by transmitting a request to the head end. A central computer interprets the request, searches t ...


6
Robert V C Dickinson: Tamper-resistant, expandable communications system. E Com Corporation, George E Kersey, May 22, 1984: US04450481 (183 worldwide citation)

An expandable, multipurpose digital and analog communications system in which a plurality of remote interrogator units connected in a branch of the system are isolated from one another by band stop filters to permit simultaneous polling without interference with other operations. Also disclosed is a ...


7
Peter L Holster, Johannes M Wittkamper: Multilayer information disc. U S Philips Corporation, Thomas A Briody, Robert T Mayer, Algy Tamoshunas, May 22, 1984: US04450553 (178 worldwide citation)

The invention relates to a multilayer information disc, in particular a video disc, which is read by laser light. The disc comprises at least two radiation-reflecting optical structures each having a relief-like information track of regions situated alternately at a higher and a lower level which is ...


8
George I Boyadjieff: Drilling of wells with top drive unit. Varco International, William P Green, May 22, 1984: US04449596 (175 worldwide citation)

Well drilling apparatus including a top drive drilling assembly having a motor driven stem adapted to be attached to the upper end of a drill string and drive it during a drilling operation, a torque wrench carried by the top drive assembly and movable upwardly and downwardly therewith and operable ...


9
Karl Storz: Dilator to facilitate endoscope insertion into the body. May 22, 1984: US04449532 (174 worldwide citation)

A dilator for surgical use having a ball on the end of a thin stiff stem. A plurality of telescoping tubes are adapted to be slid along the stem and atop one another so as successively to enlarge the path opened by the dilator. An endoscope shaft can be slid over the set of tubes so as to occupy the ...


10
Richard Cortese, Brian Barclay, Felix Theeuwes: Simultaneous delivery of two drugs from unit delivery device. ALZA Corporation, Paul L Sabatine, Edward L Mandell, Steven F Stone, May 22, 1984: US04449983 (168 worldwide citation)

An osmotic device is disclosed for delivering two beneficial drugs to an environment of use. The device comprises a wall surrounding a lumen divided into a first compartment containing a drug that is separated by a hydrogel partition from a second compartment containing a different drug. An orifice ...



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