Henricus C Buthker

USPTO Granted Patents = 7 (Patent Applications = 1)

Average Co-Inventor Count = 1.5

ph-index = 7

Forward Citations = 120(Granted Patents)

Location History:

Eindhoven, NL (1993 - 1995)
Mierlo, NL (1998 - 1999)
Eindhover, NL (1999)
5621 BA Eindhoven, NL (1999)

Company Filing History:

5 out of 14,087

U.S. Philips Corporation

patents

1 out of 9,638

Hewlett-packard Company

patents

1 out of 832,718

Other

patents

Years Active: 1993-1999

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7 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5990641 - Motor control device apparatus for the recording and/or reproduction of (1999-11-23),

2. 5949203 - Arrangement for generating drive signals for a multi-phase d.c. motor, (1999-09-07),

3. 5892355 - Current and voltage-sensing (1999-04-06),

4. 5859512 - Drive circuit supplying drive signals to a plurality of windings of a (1999-01-12),

5. 5780986 - Soft switching, PWM controller and method for reducing torque ripple in (1998-07-14),

6. 5418702 - Switch mode power supply with BJT/MOSFET cascode circuit (1995-05-23),

7. 5272613 - Cascaded rectifier and two switched voltage converter circuits with (1993-12-21),

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1 patent pending:

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