% Expired Patents = 18.2

Forward Citations = 371

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6 inventors (with patents filed for the assignee):

Hanspeter Leins (14 out of 14 patents)

Peter A Ackeret (8 out of 150 patents)

Pierre-Alain Jeandupeux (3 out of 5 patents)

4. Yves Wira (3 out of 3 patents)

5. Rolf Nussbaumer (3 out of 3 patents)

6. Claude Kottelat (3 out of 3 patents)

22 patents: Sort by Forward Citations

1. D517391 - Multi purpose hand operated utensil (2006-03-21),

2. D510106 - Multi purpose hand operated office utensil (2005-09-27),

3. 6948409 - Multipurpose handheld implement (2005-09-27),

4. 6941604 - Multipurpose hand-held implement of the pocket-knife type (2005-09-13),

5. 6874189 - Multipurpose hand-held implement of the pocket-knife type (2005-04-05),

6. 6779425 - Multipurpose handheld implement (2004-08-24),

7. D493837 - Multi purpose hand operated office utensil (2004-08-04),

8. 6708360 - Multipurpose hand-held implement (2004-03-23),

9. D474507 - Multi-purpose hand operated office utensil (2003-05-14),

10. D472931 - Multi purpose hand operated office utensil (2003-04-09),

11. 6493893 - Multi-purpose hand-held device (2002-12-17),

12. D464679 - Multi purpose hand operated office utensil (2002-10-23),

13. 6460433 - Multipurpose hand device (2002-10-08),

14. D451674 - Case for a handtool, especially for office work (2001-12-12),

15. D448410 - Multi purpose hand operated office utensil (2001-09-26),

Company Overview

Ctech Ag, based in Chur, Switzerland, specializes in advanced technology solutions with a focus on innovative engineering and product development. The company is dedicated to creating high-quality products that enhance efficiency and performance across various industries. Ctech Ag's expertise spans multiple domains, including automation, precision mechanics, and sustainable technologies, positioning it as a key player in the technological landscape. Its commitment to research and development drives continuous improvement and adaptation to market needs.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

22 Patents

#6 in Chur

#574 in Switzerland

#28,782 in the World

Chur, Switzerland

Ctech Ag

Forward Citations = 371

6 inventors:

Hanspeter Leins (14 out of 14 patents)

Peter A Ackeret (8 out of 150 patents)

Pierre-Alain Jeandupeux (3 out of 5 patents)

4. Yves Wira (3 out of 3 patents)

5. Rolf Nussbaumer (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ctech Ag. Retrieved from https://idiyas.com/company/ctech-ag

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

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]