Richard H. Hopkins

Person

Monroeville, PA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Advanced physical vapor transport method and apparatus for growing...
- Patent number 6,056,820
- Issue date May 2, 2000
- Northrop Grumman Corporation
- Vijay Balakrishna
- C30 - CRYSTAL GROWTH
Information Patent Grant
Method and apparatus for growing high purity single crystal silicon...
- Patent number 5,985,024
- Issue date Nov 16, 1999
- Northrop Grumman Corporation
- Vijay Balakrishna
- C30 - CRYSTAL GROWTH
Information Patent Grant
Method for growing large silicon carbide single crystals
- Patent number 5,968,261
- Issue date Oct 19, 1999
- Northrop Grumman Corporation
- Donovan L. Barrett
- C30 - CRYSTAL GROWTH
Information Patent Grant
Method of making a low resistivity silicon carbide boule
- Patent number 5,937,317
- Issue date Aug 10, 1999
- Northrop Grumman Corporation
- Donovan L. Barrett
- C30 - CRYSTAL GROWTH
Information Patent Grant
Method of growing 4H silicon carbide crystal
- Patent number 5,873,937
- Issue date Feb 23, 1999
- Northrop Grumman Corporation
- Richard H. Hopkins
- C30 - CRYSTAL GROWTH
Information Patent Grant
Feedstock arrangement for silicon carbide boule growth
- Patent number 5,788,768
- Issue date Aug 4, 1998
- Northrop Grumman Corporation
- Donovan L. Barrett
- C30 - CRYSTAL GROWTH
Information Patent Grant
Method of producing large diameter silicon carbide crystals
- Patent number 5,746,827
- Issue date May 5, 1998
- Northrop Grumman Corporation
- Donovan L. Barrett
- C30 - CRYSTAL GROWTH
Information Patent Grant
Apparatus for growing large silicon carbide single crystals
- Patent number 5,683,507
- Issue date Nov 4, 1997
- Northrop Grumman Corporation
- Donovan L. Barrett
- C30 - CRYSTAL GROWTH
Information Patent Grant
High resistivity silicon carbide substrates for high power microwav...
- Patent number 5,611,955
- Issue date Mar 18, 1997
- Northrop Grumman Corp.
- Donovan L. Barrett
- C30 - CRYSTAL GROWTH
Information Patent Grant
Chalcogenide glass, associated method and apparatus
- Patent number 5,077,239
- Issue date Dec 31, 1991
- Westinghouse Electric Corp.
- Narsingh B. Singh
- G02 - OPTICS
Information Patent Grant
Thin film electroluminescent edge emitter structure on a silicon su...
- Patent number 5,043,631
- Issue date Aug 27, 1991
- Westinghouse Electric Corp.
- Zoltan K. Kun
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Thin film electroluminescent edge emitter structure on a silcon sub...
- Patent number 5,004,956
- Issue date Apr 2, 1991
- Westinghouse Electric Corp.
- Zoltan K. Kun
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Precious metal doped crystals for hardening of the crystals
- Patent number 4,955,699
- Issue date Sep 11, 1990
- Westinghouse Electric Corp.
- Narsingh B. Singh
- C30 - CRYSTAL GROWTH
Information Patent Grant
Development of grain-oriented iron sheet for electrical apparatus
- Patent number 4,265,683
- Issue date May 5, 1981
- Westinghouse Electric Corp.
- Richard D. Blaugher
- C21 - METALLURGY OF IRON
Information Patent Grant
Composite erosion resistant optical window
- Patent number 4,072,782
- Issue date Feb 7, 1978
- Westinghouse Electric Corporation
- William E. Kramer
- B32 - LAYERED PRODUCTS
Information Patent Grant
Infrared temperature control of Czochralski crystal growth
- Patent number 4,058,429
- Issue date Nov 15, 1977
- Westinghouse Electric Corporation
- Charles Duncan
- C30 - CRYSTAL GROWTH

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR SYNTHESIZING ULTRAHIGH-PURITY SILICON CARBIDE
- Publication number 20090220788
- Publication date Sep 3, 2009
- II-VI Incorporated
- Donovan L. Barrett
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Low-Doped Semi-Insulating Sic Crystals and Method
- Publication number 20080190355
- Publication date Aug 14, 2008
- II-VI Incorporated
- Jihong Chen
- C30 - CRYSTAL GROWTH

Richard H. Hopkins

Person

Patents Grantslast 30 patents

Advanced physical vapor transport method and apparatus for growing...

Method and apparatus for growing high purity single crystal silicon...

Method for growing large silicon carbide single crystals

Method of making a low resistivity silicon carbide boule

Method of growing 4H silicon carbide crystal

Feedstock arrangement for silicon carbide boule growth

Method of producing large diameter silicon carbide crystals

Apparatus for growing large silicon carbide single crystals

High resistivity silicon carbide substrates for high power microwav...

Chalcogenide glass, associated method and apparatus

Thin film electroluminescent edge emitter structure on a silicon su...

Thin film electroluminescent edge emitter structure on a silcon sub...

Precious metal doped crystals for hardening of the crystals

Development of grain-oriented iron sheet for electrical apparatus

Composite erosion resistant optical window

Infrared temperature control of Czochralski crystal growth

Patents Applicationslast 30 patents

METHOD FOR SYNTHESIZING ULTRAHIGH-PURITY SILICON CARBIDE

Low-Doped Semi-Insulating Sic Crystals and Method