John I. Ykema

Person

Broomall, PA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Graded resistance solid state current control circuit
- Patent number 8,614,868
- Issue date Dec 24, 2013
- SPD Electrical Systems, Inc.
- Robert Lawler
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Power node switching center
- Patent number 7,667,938
- Issue date Feb 23, 2010
- SPD Electrical Systems
- John I Ykema
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Power node control center
- Patent number 7,076,592
- Issue date Jul 11, 2006
- SPD Technologies Inc.
- John I. Ykema
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Power distribution system including integrated power node control c...
- Patent number 6,675,302
- Issue date Jan 6, 2004
- SPD Technologies Inc.
- John I. Ykema
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power distribution system including integrated power node control c...
- Patent number 6,377,874
- Issue date Apr 23, 2002
- SPD Technologies Inc.
- John I. Ykema
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electrical integrated modular power node
- Patent number 6,351,715
- Issue date Feb 26, 2002
- SPD Technologies Inc.
- John I. Ykema
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Compact electrical bus
- Patent number 6,320,132
- Issue date Nov 20, 2001
- SPD Technologies, Inc.
- John I. Ykema
- G02 - OPTICS
Information Patent Grant
Compact electrical bus
- Patent number 6,222,127
- Issue date Apr 24, 2001
- SPD Technologies, Inc.
- John I. Ykema
- G02 - OPTICS
Information Patent Grant
Compact electrical bus
- Patent number 5,936,201
- Issue date Aug 10, 1999
- SPD Technologies Inc.
- John I. Ykema
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
GRADED RESISTANCE SOLID STATE CURRENT CONTROL CIRCUIT
- Publication number 20120243137
- Publication date Sep 27, 2012
- SPD ELECTRICAL SYSTEMS
- Robert Lawler
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Power Node Switching Center
- Publication number 20090154047
- Publication date Jun 18, 2009
- John Ykema
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Power distribution system including integrated power node control c...
- Publication number 20020091949
- Publication date Jul 11, 2002
- John I. Ykema
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

John I. Ykema

Person

Patents Grantslast 30 patents

Graded resistance solid state current control circuit

Power node switching center

Power node control center

Power distribution system including integrated power node control c...

Power distribution system including integrated power node control c...

Electrical integrated modular power node

Compact electrical bus

Compact electrical bus

Compact electrical bus

Patents Applicationslast 30 patents

GRADED RESISTANCE SOLID STATE CURRENT CONTROL CIRCUIT

Power Node Switching Center

Power distribution system including integrated power node control c...