Joel M Cook, Vincent M Donnelly, Daniel L Flamm, Dale E Ibbotson, John A Mucha: Etching techniques. AT&T Bell Laboratories, Bruce S Schneider, February 12, 1985: US04498953 (150 worldwide citation)

A highly selective--greater than 100 to 1--etch for silicon, tantalum, tantalum silicide and tantalum nitride is achieved by using polyatomic halogen fluorides. The selectivity is achievable without employing plasmas or wet etching.

John J Vrolyk: Emission controller for indirect fired downhole steam generators. Rockwell International Corporation, H Fredrick Hamann, Harry B Field, February 12, 1985: US04498531 (150 worldwide citation)

The present invention provides an indirect downhole steam generator system comprising a downhole combustor, a well casing which provides a flue for the exhaust gases of the downhole combustor, and one or more aerosol nozzles situated within the exhaust flue of the well casing for injecting an aeroso ...

Ian Osgerby: Carbon dioxide power cycle. Jerry Cohen, M Lawrence Oliverio, February 12, 1985: US04498289 (142 worldwide citation)

An improved direct fired power system generating and employing a combustion gas which includes carbon dioxide or a working fluid including a combustion chamber (20) for burning a mixture which includes oxygen, carbonaceous fuel and recycled carbon dioxide working fluid at a first pressure of above 1 ...

Robert C Turner, Anthony B Stone, Rury R Holman: Dose metering plunger devices for use with syringes. Oblon Fisher Spivak McClelland & Maier, February 12, 1985: US04498904 (133 worldwide citation)

A dose metering device for use with a syringe comprises a fixed screwthreaded member (17) which is either integral with or fixed in use to the cylinder (10) of the syringe and is in threaded engagement with a screwthreaded plunger (13) which can be rotated by a manually-rotatable cap (30) acting thr ...

Ikuo Omura, Junichi Yamauchi, Yoshinori Nagase, Fumiko Uemura: Adhesive compositions. Kuraray, Oblon Fisher Spivak McClelland & Maier, February 12, 1985: US04499251 (117 worldwide citation)

This invention provides an adhesive composition which comprises 1 part by weight of (a) a compound of the general formula: ##STR1## wherein R.sub.1 represents H, a hydrocarbon group of 1-6 carbon atoms optionally containing halogen, COOR' wherein R' represents a hydrocarbon group of 1-20 carbon atom ...

Bo Hakansson: Coupling to a bone-anchored hearing aid. Holman & Stern, February 12, 1985: US04498461 (116 worldwide citation)

The present invention refers to a coupling intended for mechanical transmission of sound information from a vibration generating apparatus as a transmitter to the skull of a person with damaged hearing, including a first coupling part, for example directly anchored to the skull, and a second couplin ...

Ashokkumar B Shenvi, Charles A Kettner: .alpha.-Aminoboronic acid peptides. E I Du Pont de Nemours and Company, Scott G Hallquist, February 12, 1985: US04499082 (115 worldwide citation)

Peptides comprising C-terminal .alpha.-aminoboronic acid residues are potent, reversible inhibitors of proteolytic enzymes.

Robert J Cerwin, Madhusudan Joshi, John R Menges, Robert W Mericle, William J Zwaskis: Non-metallic, bio-compatible hemostatic clips with interlocking latch means. Ethicon, Robert L Minier, February 12, 1985: US04498476 (115 worldwide citation)

Sterile, non-metallic, bio-compatible hemostatic clips of absorbable and non-absorbable materials comprising two leg members joined with a resilient hinge. The distal ends of said leg members include latch means to lock the clip in a closed position. Each leg member has a vessel clamping inner face ...

Shinichi Nakagawa, Tsuneo Nakagawa, Sadaatsu Yamaguchi, Kiyohiko Ihara, Toshihiko Amano, Mitsugu Omori, Kohzoh Asano: Process for preparing tetrafluoroethylene/fluoro(alkyl vinyl ether) copolymer. Daikin Kogyo, Birch Stewart Kolasch & Birch, February 12, 1985: US04499249 (113 worldwide citation)

A process for preparing a tetrafluoroethylene/fluoro(alkyl vinyl ether) copolymer comprising polymerizing tetrafluoroethylene and fluoro(alkyl vinyl ether) in an aqueous suspension system which comprises a mixed medium of water and a fluorohydrocarbon or a chlorofluorohydrocarbon in a volume ratio o ...

Stephen R Ash, Gordon C Wolf, Richard Bloch: Catheter guide. Purdue Research Foundation, O Rourke & Harris, February 12, 1985: US04498902 (110 worldwide citation)

A slotted catheter emplacement guide of one piece construction which simplifies emplacement of a peritoneal catheter and also permits insertion through a very small abdominal opening.