1
Roger N Piasio, James W Ryan, James E Woiszwillo: Reverse sandwich immunoassay. Corning Glass Works, William E Maycock, Clinton S Janes Jr, Clarence R Patty Jr, July 4, 1978: US04098876 (349 worldwide citation)

Method of determining the presence and/or concentration of a polyvalent antigenic substance in a fluid. The method comprises the steps of incubating the fluid with labeled antibodies to the substance to form a first labeled immunochemical complex and then incubating that complex with immobilized ant ...


2
Glen Marshall Dappen: Glucose detection system free from fluoride-ion interference. Eastman Kodak Company, Arthur L Girard, July 4, 1978: US04098574 (271 worldwide citation)

An improved multilayer element for detecting glucose in samples of biological fluid which may contain with fluoride ion as a contaminant or preservative is described. The improved element comprises a buffered Trinder's reagent, which reagent comprises glucose oxidase, peroxidase, 4-aminoantipyrine a ...


3
Solomon Rosenblatt: Medical surgical sponge and method of making same. Ostrolenk Faber Gerb & Soffen, July 4, 1978: US04098728 (171 worldwide citation)

A uniformly expandable hydrophilic sponge, adapted for medical usage, characterized by instantaneous wicking and a high liquid holding capacity comprising a reaction product of polyvinyl alcohol and formaldehyde. The wicking and liquid holding capacity is attained by controlling the time, temperatur ...


4
Michael Jarcho: Hydroxylapatite ceramic. Sterling Drug, Paul E Dupont, B Woodrow Wyatt, July 4, 1978: US04097935 (157 worldwide citation)

A novel ceramic form of hydroxylapatite and a novel ceramic product comprising a mixture of the latter and whitlockite, the preparation of these ceramics and dental restorative compositions and dental and surgical prosthetic materials containing the same are disclosed. Also described is a novel and ...


5
Michihiko Ochiai, Taiiti Okada, Osami Aki, Akira Morimoto, Kenji Kawakita, Yoshihiro Matsushita: Thiazolylacetamido cephalosporin type compounds. Takeda Chemical, Wenderoth Lind & Ponack, July 4, 1978: US04098888 (150 worldwide citation)

Novel cephem compounds of the formula; ##STR1## wherein R.sup.1 represents amino or hydroxyl group which may be protected, R.sup.2 represents amino or hydroxyl group or a group convertible into these groups, R.sup.3 represents hydrogen or methoxy group or a group convertible into methoxy group, R.su ...


6
Richard T Simko: Triple layer polysilicon cell. Intel Corporation, Blakely Sokoloff Taylor & Zafman, July 4, 1978: US04099196 (136 worldwide citation)

A triple layer polysilicon cell for use in an electrically erasable PROM or for a discretionary circuit connector is described. Tunneling is employed to transfer charge to a floating gate from a programming gate and also to transfer charge from the floating gate to an erasing gate. Through light dop ...


7
William Rapshys: Directive antenna with reflectors and directors. Motorola, James P Hamley, James W Gillman, July 4, 1978: US04099184 (133 worldwide citation)

An antenna system of the type wherein the radiating pattern may be controlled to direct the radiation of a signal in a selected direction. The system includes a plurality of radiating elements which are affixed to a coplanar in planes which are equiangular from each other. In response to a selected ...


8
Phillip E Bonnice: Rotary drill bit and method for making same. General Electric Company, Dennis A Dearing, Donald J Voss, Frank L Neuhauser, July 4, 1978: US04098362 (130 worldwide citation)

A rotary rock drill bit comprising a plurality of cutting elements or cutters mounted in the crown of the drill bit. Each cutting element comprises a thin planar layer of polycrystalline diamond bonded in the crown of the bit at a rake angle of between -10.degree. and -25.degree.. In another embodim ...


9
William Hardin Graham, Inella Gatlin Shepard: Hydroxy terminated polybutadiene based polyurethane bound propellant grains. Thiokol Corporation, Stanley A Marcus, Royal E Bright, July 4, 1978: US04098626 (130 worldwide citation)

Salicylate esters have been found to be suitable blocking agents for polyisocyanates, enabling preparation of hydroxy terminated polybutadiene based polyurethane bound propellant grains having extended pot life. Unblocking occurs readily at normal propellant cure temperatures, allowing normal cure r ...


10
Robert C Franklin, Frank I Fuller: Electronic wall stud sensor. Gerald L Moore, July 4, 1978: US04099118 (120 worldwide citation)

A portable sensor adapted to be moved along a wall to indicate a change in the dielectric constant of the wall thereby to signal the presence of a wall stud within the wall. The sensor incorporates a capacitor plate positioned adjacent the surface in contact with the wall and a circuit for detecting ...