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For the Inventor, By the Inventor

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.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Helmut Preisach. Retrieved from https://idiyas.com/inventor/helmut-preisach

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 10

% Patents Active = 40.0


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:

goldMedal5 out of 2,504 
 
Alcatel
 patents
silverMedal2 out of 5,033 
 
Alcatel Lucent
 patents
bronzeMedal2 out of 736 
 
Alcatel N.v.
 patents
4. 1 out of 21,378 
 
Cisco Technology, Inc.
 patents

Years Active: 1993-2024

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10 patents (USPTO):Explore 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),
Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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