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For the Inventor, By the Inventor

Kirchseeon, Germany

Siegfried Zenker

This inventor holds 21 USPTO granted patents and 1 EPO patent, primarily in Hydraulic Valve Technology. Top assignees: Danfoss A/s, Sauer Danfoss Aps, Sauer-Danfoss (Nordborg) A/s. Active years: 1990-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Siegfried Zenker. Retrieved from https://idiyas.com/inventor/siegfried-zenker

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

USPTO Granted Patents = 21

% Patents Active = 81.0

 

Average Co-Inventor Count = 2.8

ph-index = 7

Forward Citations = 119(Granted Patents)


Location History:

  • Kirchseeon, DK (1991)
  • Kirchseeon, DE (1990 - 2013)

Company Filing History:

goldMedal10 out of 1,015 
 
Danfoss A/s
 patents
silverMedal7 out of 68 
 
Sauer Danfoss Aps
 patents
bronzeMedal2 out of 10 
 
Sauer-Danfoss (Nordborg) A/s
 patents
4. 1 out of 7 
 
Danfoss Fluid Power A/s
 patents
5. 1 out of 1 
 
Sauer-Danfoss (Nordberg) A/s
 patent
6. 1 out of 24 
 
Sauer-Danfoss Holding A/s
 patents
where one patent can have more than one assignee

Years Active: 1990-2013

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Areas of Expertise:
Hydraulic Valve Arrangement
Control Valve
Pressure Control Valve
Damping Arrangement
Dual Circuit Steering System
Three-Way Valve
Two-Way Seat-Type Valve
Hydraulic System
Hydraulic Line Coupling
Locking Function
Floating Function
Load-Sensing Passage
21 patents (USPTO):Explore Patents
1. 8528460 - Hydraulic valve arrangement (2013-09-10),
2. 8444110 - Valve arrangement (2013-05-21),
3. 8020583 - Hydraulic valve arrangement (2011-09-20),
4. 7975598 - Hydraulic valve arrangement (2011-07-12),
5. 7770596 - Hydraulic valve arrangement (2010-08-10),
6. 6971407 - Hydraulic valve arrangement (2005-12-06),
7. 6854270 - Hydraulic valve system (2005-02-15),
8. 6805161 - Hydraulic valve system (2004-10-19),
9. 6712176 - Hydraulic dual circuit steering system (2004-03-30),
10. 6499505 - Hydraulic valve arrangement (2002-12-31),
11. 6490963 - Hydraulic line coupling arrangement (2002-12-10),
12. 6427721 - Hydraulic valve arrangement with locking function (2002-08-06),
13. 6220289 - Hydraulic valve arrangement with locking and floating function (2001-04-24),
14. 5979498 - Three-way or multi-way valve (1999-11-09),
15. 5947441 - Two-way seat-type valve (1999-09-07),

Title: The Innovative Journey of Siegfried Zenker

Introduction:

Siegfried Zenker, a visionary inventor hailing from Kirchseeon, Germany, has made significant contributions to the field of technology through his groundbreaking inventions and patents.

Latest Patents:

Zenker's latest patents focus on renewable energy solutions, with a series of inventions aimed at enhancing the efficiency of solar panels and wind turbines. These patents showcase his commitment to sustainability and environmental innovation.

Career Highlights:

Throughout his illustrious career, Zenker has been at the forefront of technological advancements. His early work in the automotive industry led to the development of energy-efficient engines, revolutionizing the sector. Subsequently, he transitioned into the renewable energy field, where his inventions have garnered international acclaim.

Collaborations:

Zenker has collaborated with leading research institutions and universities to further his innovative projects. His partnerships with top engineers and scientists have resulted in cutting-edge solutions that address pressing global challenges.

Conclusion:

In conclusion, Siegfried Zenker's relentless pursuit of innovation and his passion for creating a sustainable future have solidified his reputation as a pioneering inventor in the realm of technology. His contributions continue to inspire the next generation of inventors and shape the landscape of renewable energy.

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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