David A. Horsma

Person

Palo Alto, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Sealed electronic packaging for environmental protection of active...
- Patent number 5,739,463
- Issue date Apr 14, 1998
- Raychem Corporation
- Steve Diaz
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electrical device comprising conductive polymers
- Patent number 5,166,658
- Issue date Nov 24, 1992
- Raychem Corporation
- Shou-Mean Fang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Composite circuit protection devices
- Patent number 5,148,005
- Issue date Sep 15, 1992
- Raychem Corporation
- Shou-Mean Fang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Composite circuit protection devices
- Patent number 5,089,688
- Issue date Feb 18, 1992
- Raychem Corporation
- Shou-Mean Fang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Composite circuit protection devices
- Patent number 5,064,997
- Issue date Nov 12, 1991
- Raychem Corporation
- Shou-Mean Fang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Assemblies of PTC circuit protection devices
- Patent number 4,967,176
- Issue date Oct 30, 1990
- Raychem Corporation
- David A. Horsma
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Self regulating heating device employing positive temperature coeff...
- Patent number 4,658,121
- Issue date Apr 14, 1987
- Raychem Corporation
- David A. Horsma
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Layered self-regulating heating article
- Patent number 4,654,511
- Issue date Mar 31, 1987
- Raychem Corporation
- David A. Horsma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Positive temperature coefficient of resistance compositions
- Patent number 4,560,498
- Issue date Dec 24, 1985
- Raychem Corporation
- David A. Horsma
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Layered self-regulating heating article
- Patent number 4,543,474
- Issue date Sep 24, 1985
- Raychem Corporation
- David A. Horsma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Self-heating article with deformable electrodes
- Patent number 4,421,582
- Issue date Dec 20, 1983
- Raychem Corporation
- David A. Horsma
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method of encapsulation
- Patent number 4,419,156
- Issue date Dec 6, 1983
- Raychem Corporation
- Stephen H. Diaz
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Conductive polymer compositions, and to devices comprising such com...
- Patent number 4,388,607
- Issue date Jun 14, 1983
- Raychem Corporation
- Lester T. Toy
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Layered self-regulating heating article
- Patent number 4,330,703
- Issue date May 18, 1982
- Raychem Corporation
- David A. Horsma
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Electrical devices containing PTC elements
- Patent number 4,314,145
- Issue date Feb 2, 1982
- Raychem Corporation
- David A. Horsma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electrical devices containing PTC elements
- Patent number 4,246,468
- Issue date Jan 20, 1981
- Raychem Corporation
- David A. Horsma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Process for preparing a hermetically sealed assembly
- Patent number 4,236,949
- Issue date Dec 2, 1980
- Raychem Corporation
- David A. Horsma
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Methods for sealing closure members to substrates
- Patent number 4,209,352
- Issue date Jun 24, 1980
- Raychem Corporation
- Stephen H. Diaz
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Layered self-regulating heating article
- Patent number 4,177,376
- Issue date Dec 4, 1979
- Raychem Corporation
- David A. Horsma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Multiple cable adapter and splice case including the same
- Patent number 4,095,044
- Issue date Jun 13, 1978
- Raychem Corporation
- David August Horsma
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Heat-recoverable sealing article with self-contained heating means...
- Patent number 4,085,286
- Issue date Apr 18, 1978
- Raychem Corporation
- David August Horsma
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Temperature overshoot heater
- Patent number 4,017,715
- Issue date Apr 12, 1977
- Raychem Corporation
- Wells Whitney
- H01 - BASIC ELECTRIC ELEMENTS

David A. Horsma

Person

Patents Grantslast 30 patents

Sealed electronic packaging for environmental protection of active...

Electrical device comprising conductive polymers

Composite circuit protection devices

Composite circuit protection devices

Composite circuit protection devices

Assemblies of PTC circuit protection devices

Self regulating heating device employing positive temperature coeff...

Layered self-regulating heating article

Positive temperature coefficient of resistance compositions

Layered self-regulating heating article

Self-heating article with deformable electrodes

Method of encapsulation

Conductive polymer compositions, and to devices comprising such com...

Layered self-regulating heating article

Electrical devices containing PTC elements

Electrical devices containing PTC elements

Process for preparing a hermetically sealed assembly

Methods for sealing closure members to substrates

Layered self-regulating heating article

Multiple cable adapter and splice case including the same

Heat-recoverable sealing article with self-contained heating means...

Temperature overshoot heater