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For the Inventor, By the Inventor

Landquart, Switzerland

Cedes Ag


USPTO Granted Patents = 56

% Expired Patents = 3.6



Trademarks = 2

Forward Citations = 230

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47 inventors (with patents filed for the assignee):

goldMedal Beat De Coi (29 out of 41 patents)

silverMedal Tobias Leutenegger (17 out of 17 patents)

bronzeMedal Bas Albers (8 out of 8 patents)

4.  Jürg Hegelbach (7 out of 7 patents)

5.  Dumeng Hersche (6 out of 6 patents)

6.  Jan Giger (5 out of 5 patents)

7.  Michael Schatt (4 out of 4 patents)

8.  Marco Graf (4 out of 4 patents)

9.  Peter Nebiker (4 out of 4 patents)

10.  Martin Hardegger (3 out of 21 patents)

11.  Christian E Thöny (3 out of 3 patents)

12.  Steven Freedman (3 out of 3 patents)

13.  Marcial Lendi (3 out of 3 patents)

14.  Simon Walser (2 out of 2 patents)

15.  Carl Meinherz (2 out of 21 patents)


Core Competencies:
Elevator Safety
Door Sensors
Position Detection
Emergency Monitoring
Distance Measurement
Safety Systems
3D Sensors
Elevator Control
Monitoring Apparatus
Safety Devices
Communication Systems
Strain Sensors

56 patents:

1. 12644326 - Leading closing edge safety arrangement for a door device and door device (2026-06-02),
2. 12566280 - Reversing detection for an elevator car door (2026-03-03),
3. 12559344 - Elevator controller for leveling process optimization (2026-02-24),
4. 12468064 - Light grid with distance measurement (2025-11-11),
5. 12441583 - Safety apparatus for detecting a medical emergency in a passenger elevator (2025-10-14),
6. 12398016 - Strain sensor for a position measuring tape of an elevator (2025-08-26),
7. 12386100 - Light grid with distance measurement (2025-08-12),
8. 12246947 - Method for safeguarding the car of an elevator (2025-03-11),
9. 12246942 - Limit-curve control system for elevators (2025-03-11),
10. 12204477 - Communication system for elevators (2025-01-21),
11. 11782130 - TOF sensor with test emitter (2023-10-10),
12. 11781363 - Optoelectronic safety device and method for monitoring a movement of a machine (2023-10-10),
13. 10975608 - Teaching method for a door sensor (2021-04-13),
14. 10947768 - Door sensor with rotation angle encoder (2021-03-16),
15. 10844646 - Light grid with distance information to distinguish between a normal case and a safety case between a door edge and an object (2020-11-24),
Company Overview
Cedes AG, headquartered in Landquart, Switzerland, specializes in advanced elevator safety systems. The company focuses on developing innovative technologies that enhance safety and efficiency in vertical transportation. Key areas of expertise include door sensors, position detection, emergency monitoring, and distance measurement. Cedes AG is recognized for its commitment to quality and reliability, providing solutions that integrate seamlessly into modern elevator control systems, thereby ensuring safe and efficient operation in various environments.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

Cedes Ag USPTO Patent Assignee Logo
56 Patents

#1 in Landquart

#268 in Switzerland

#12,754 in the World

Landquart, CH
Landquart, Switzerland

Cedes Ag

Forward Citations = 230

47 inventors:

goldMedal Beat De Coi (29 out of 41 patents)

silverMedal Tobias Leutenegger (17 out of 17 patents)

bronzeMedal Bas Albers (8 out of 8 patents)

4.  Jürg Hegelbach (7 out of 7 patents)

5.  Dumeng Hersche (6 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Cedes Ag. Retrieved from https://idiyas.com/company/cedes-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]
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