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Besigheim, Germany

Helmut Preisach

This inventor holds 10 USPTO granted patents and 1 EPO patent. Top assignees: Alcatel, Alcatel Lucent, Alcatel N.v.. Active years: 1993-2024.

USPTO Granted Patents = 10

% Patents Active = 40.0

EPO Patents = 1

Average Co-Inventor Count = 1.2

ph-index = 3

Forward Citations = 70(Granted Patents)

Location History:

Murr, DE (1993)
Pleidelsheim, DE (1997)
Besigheim, DE (2006 - 2024)

Company Filing History:

4. 1 out of 21,321

Cisco Technology, Inc.

Years Active: 1993-2024

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10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11949498 - Optical modulator (2024-04-02),

2. 8305111 - Electrical space switching matrix (2012-11-06),

3. 7835464 - Digital signal receiver with Q-monitor (2010-11-16),

4. 7650079 - Integrated optical transceiver circuit (2010-01-19),

5. 7502400 - Drive circuit and method of operating a semiconductor laser (2009-03-10),

6. 7440512 - Electrical signal regenerator (2008-10-21),

7. 7084694 - Switching circuit for switching constant current source using MOS transistor (2006-08-01),

8. 7068199 - Digital to analog converter, phase control circuit, transmission unit recognition circuit (2006-06-27),

9. 5680060 - Method of and circuit arrangement for terminating a line connected to a (1997-10-21),

10. 5251238 - Circuit arrangement and method for the regeneration and synchronization (1993-10-05),

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