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For the Inventor, By the Inventor

Unterkulm, Switzerland

Kwc Ag


USPTO Granted Patents = 106

% Expired Patents = 21.7



Trademarks = 3

Forward Citations = 1,668

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38 inventors (with patents filed for the assignee):

goldMedal Michael Lammel (32 out of 88 patents)

silverMedal Michael Zeisel (31 out of 67 patents)

bronzeMedal Ferdinand F Hochstrasser (17 out of 17 patents)

4.  Philippe Chretien (13 out of 14 patents)

5.  Christian Gautschi (8 out of 8 patents)

6.  Michael Lehner (8 out of 8 patents)

7.  Heinz Graber (7 out of 8 patents)

8.  Herbert Gloor (6 out of 6 patents)

9.  André Leutwyler (5 out of 5 patents)

10.  Hans-Ulrich Alder (4 out of 4 patents)

11.  Stefan Brunner (4 out of 4 patents)

12.  Hannes Wettstein (4 out of 5 patents)

13.  Daniel Baumann (3 out of 3 patents)

14.  Roland Gloor (3 out of 3 patents)

15.  Benjamin Wagner (2 out of 2 patents)


Core Competencies:
Faucet
Sanitary Fitting
Spray Attachment
Water Outlet
Control Cartridge
Shower Head
Hot Water Regulator
Flexible Outlet Guide
Backflow Preventer
Switchable Spray Head
Luminous Actuating Lever
Telescopic Outlet System

106 patents:

1. 11851860 - Jet regulator (2023-12-26),
2. 11332912 - Device for dispensing hot water (2022-05-17),
3. 10047506 - Water outlet fitting with flexible outlet guide (2018-08-14),
4. 9708801 - Water outlet fitting with flexible outlet guide (2017-07-18),
5. 9027857 - Switchable hand shower (2015-05-12),
6. 8783651 - Sanitary fitting with a joint (2014-07-22),
7. 8763986 - Sanitary fitting having a covering element for protecting a control cartridge (2014-07-01),
8. 8713725 - Water outlet fitting (2014-05-06),
9. 8708257 - Spray attachment with a separable holding part and spray head (2014-04-29),
10. 8590072 - Sanitary fitting with insulated outflow pipe (2013-11-26),
11. 8550380 - Switchable spray head (2013-10-08),
12. 8534568 - Sanitary fitting with a joystick controller (2013-09-17),
13. 8418995 - Sanitary fitting with limitation of water flow (2013-04-16),
14. 8328161 - Sanitary fitting with separate mounting for the actuating lever (2012-12-11),
15. D667533 - Faucet (2012-09-18),
Kwc Ag, headquartered in Unterkulm, Switzerland, specializes in the development and manufacturing of high-quality sanitary fittings. The company focuses on innovative solutions for faucets, shower heads, and various water outlet systems, ensuring optimal functionality and user experience. With a commitment to precision engineering, Kwc Ag integrates advanced technologies in control cartridges and flexible outlet guides, catering to both residential and commercial markets. Their expertise in hot water regulation further enhances the efficiency and safety of water usage.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

106 Patents

#1 in Unterkulm

#159 in Switzerland

#7,397 in the World

Unterkulm, CH
Unterkulm, Switzerland

Kwc Ag

Forward Citations = 1,668

38 inventors:

goldMedal Michael Lammel (32 out of 88 patents)

silverMedal Michael Zeisel (31 out of 67 patents)

bronzeMedal Ferdinand F Hochstrasser (17 out of 17 patents)

4.  Philippe Chretien (13 out of 14 patents)

5.  Christian Gautschi (8 out of 8 patents)

Please report any incorrect information to [email protected]
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