1
Hany M G Hussein, Marvin P Loeb, Harvey S Weiss: Dual balloon catheter device. Laserscope, May 1, 1984: US04445892 (586 worldwide citation)

A dual balloon catheter device is provided with two spaced and expandable balloons for occluding a segment of a blood vessel. The device also includes a first channel for flushing the occluded segment, an optic system for use in the segment, and a second channel for introducing fluid into the blood ...


2
David C Auth: Method and apparatus for removal of enclosed abnormal deposits. Seed and Berry, May 1, 1984: US04445509 (506 worldwide citation)

A device for safe removal of abnormal deposits, primarily in the human body, where differential cutting properties provide for fracture of hard matter while safely preserving soft tissue. The device includes a rotating cutting tool having spirally shaped cutting flutes having hardness-differential c ...


3
David C Thomas: Method and apparatus for providing security for computer software. Corban International, William H Drummond, May 1, 1984: US04446519 (281 worldwide citation)

Security for computer software is achieved by providing each purchaser of a software package with an electronic security device which must be operatively connected to the purchaser's computer. The software sends coded interrogation signals to the electronic security device which processes the interr ...


4
Roy R Vann: Continuous borehole formed horizontally through a hydrocarbon producing formation. GEO Vann, May 1, 1984: US04445574 (196 worldwide citation)

A borehole is formed down into the ground and extends towards an underlying pay zone, and then is turned horizontally through the pay zone, and then continues back up towards the surface of the earth; so that the resultant borehole is continuous from an inlet to an outlet, with the inlet and outlet ...


5
Howard G Rogers, Ruth C Bilofsky, Russell Gaudiana, Ronald A Sahatjian: Optical device including birefringent polymer. Polaroid Corporation, Louis G Xiarhos, May 1, 1984: US04446305 (184 worldwide citation)

Optical devices including a molecularly oriented highly birefringent polymer are disclosed. The devices include molecularly oriented polymers comprising recurring units which exhibit a distribution of high electron density about the long axes of the polymer and the recurring units thereof. Transpare ...


6
Lance A Liotta: Enzyme immunoassay with two-zoned device having bound antigens. Fay & Sharpe, May 1, 1984: US04446232 (182 worldwide citation)

A device for determining the presence of antigens which comprises a first zone containing antigens and enzyme-linked antibodies which are capable of immunologically reacting with said antigens, said antibodies being positioned in said first zone such that they will be removed from said first zone wh ...


7
Ian M Thomas: Process of making glass articles having antireflective coating. Owens Illinois, David R Birchall, Myron E Click, May 1, 1984: US04446171 (149 worldwide citation)

Disclosed is a process of making a glass article containing a thin surface film antireflective coating made by providing a dispersion containing at least one metallo-organic compound in solution and at least one organic polymer in solution, depositing a thin coating of such dispersion on the glass s ...


8
Jewell L Osterholm: Stroke treatment utilizing extravascular circulation of oxygenated synthetic nutrients to treat tissue hypoxic and ischemic disorders. Thomas Jefferson University, Woodcock Washburn Kurtz Mackiewicz & Norris, May 1, 1984: US04445500 (135 worldwide citation)

A novel acute care cerebral support system and method for treating severly ischemic brains is disclosed wherein an oxygenated nutrient emulsion is circulated through at least a portion of the ventriculo-subarachnoid spaces. The nutrient emulsion contains an oxygenatable non-aqueous component, an aqu ...


9
Harumasa Yamasaki, Shoichiro Harada: Process for preparation of high water-absorbent polymer beads. Kao Soap, Flynn Thiel Boutell & Tanis, May 1, 1984: US04446261 (135 worldwide citation)

Water-insoluble, high water-absorbent polymer beads are prepared by dispersing and suspending an aqueous solution of a water-soluble, ethylenically unsaturated monomer containing a small amount of a crosslinking agent in a dispersion medium of a hydrocarbon or a halogenated aromatic hydrocarbon, car ...


10
Ronald E Pyle: Home security system. May 1, 1984: US04446454 (128 worldwide citation)

A security system for alerting an intrusion disturbance at an entry point to a residence, or alerting as to other emergency conditions, such as fire is disclosed. In the system, a primary monitoring unit having intrusion detection sensors for placement at entry points to a residence produces an audi ...