John R Abrams

US Patent:

44964757, Jan 29, 1985

Filed:

Sep 1, 1982

Appl. No.:

6/413608

Inventors:

John C. Abrams - Tappan NY

Assignee:

Potters Industries, Inc. - Hasbrouck Heights NJ

International Classification:

H01B 106

US Classification:

252514

Abstract:

A conductive paste and an electroconductive body fabricated from the paste, in which the paste comprises inorganic non-metallic particles coated with silver, silver particles and an organic binder, or inorganic non-metallic particles coated with silver, silver particles, particles of glassy material and an organic vehicle. An electroconductive body comprises silver particles, and inorganic non-metallic particles coated with silver, both embedded in a matrix of organic material or of glassy material. The silver particles and silver-coated inorganic non-metallic particles are in effective contacting relationship within the matrix. Also disclosed are a silver-coated glass bead, for incorporation in paste and an electroconductive body, and methods for fabricating an electroconductive body. The electroconductive bodies are useful, for example, as termination elements for capacitors, and as internal conductive elements in capacitors of the type used in thick-film technology applications.

US Patent:

50432702, Aug 27, 1991

Filed:

Mar 31, 1989

Appl. No.:

7/331434

Inventors:

John M. Abrams - New York NY
Robert T. Schimke - Palo Alto CA
Susan M. Thorpe - Copenhagen, DK

Assignee:

The Board of Trustees of the Leland Stanford Junior University - Stanford CA

International Classification:

C12N 100
C12N 1512
C12N 1511
C12N 500

US Classification:

435 691

Abstract:

DNA constructs are provided employing intronically positioned expression, systems, where one of the genes is a dominant gene, usually amplifiable, and the other gene encodes a sequence of interest. Higher levels of co-expression are achieved than when the genese are ligated in tandem. Specifically, the gene of interest is inserted into the intron of a DHFR minigene, the construct transformed into a mammalian cell and the resulting transformants stressed with progressively increasing levels of methotrexate. Substantially increasing levels of co-expression are achieved with increasing levels of methotrexate.

US Patent:

44192797, Dec 6, 1983

Filed:

Sep 15, 1980

Appl. No.:

6/187428

Inventors:

John C. Abrams - Tappan NY

Assignee:

Potters Industries, Inc. - Hasbrouck Heights NJ

International Classification:

H01B 102

US Classification:

252514

Abstract:

A conductive paste and an electroconductive body fabricated from the paste, in which the paste comprises inorganic non-metallic particles coated with silver, silver particles and an organic binder, or inorganic non-metallic particles coated with silver, silver particles, particles of glassy material and an organic vehicle. An electroconductive body comprises silver particles, and inorganic non-metallic particles coated with silver, both embedded in a matrix of organic material or of glassy material. The silver particles and silver-coated inorganic non-metallic particles are in effective contacting relationship within the matrix. Also disclosed are a silver-coated glass bead, for incorporation in paste and an electroconductive body, and methods for fabricating an electroconductive body. The electroconductive bodies are useful, for example, as termination elements for capacitors, and as internal conductive elements in capacitors of the type used in thick-film technology applications.