Stouchsburg, PA, United States of America

Dean Michael Umberger

This inventor holds 4 USPTO granted patents. Top assignees: Lucent Technologies Inc., Agere Systems Guardian Corp., At+t Corp.. Active years: 1996-2001.

USPTO Granted Patents = 4

% Patents Active = 100.0

Average Co-Inventor Count = 1.6

ph-index = 3

Forward Citations = 18(Granted Patents)

Company Filing History:

2 out of 9,364

Lucent Technologies Inc.

patents

1 out of 598

Agere Systems Guardian Corp.

Years Active: 1996-2001

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4 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6333664 - Low operating power, high voltage ringing switch circuit (2001-12-25),

2. 6169425 - Voltage sensing current foldback switch circuit (2001-01-02),

3. 5631797 - Overvoltage protector (1997-05-20),

4. 5532498 - High sensitivity control circuit for optical solid-state relays (1996-07-02),

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