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For the Inventor, By the Inventor

Hergiswil, Switzerland

Kwc Ag


USPTO Granted Patents = 106



Trademarks = 5

Forward Citations = 1,600

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52 inventors (with patents filed for the assignee):

goldMedal Michael Lammel (32 out of 86 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:
Jet Regulator
Water Outlet Fitting
Sanitary Fitting
Switchable Hand Shower
Spray Attachment
Faucet Design
Shower Head
Joystick Controller
Luminous Actuating Lever
Telescopic Outlet System
Pull-Out Spray
Swivel Spout

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 is a Swiss company specializing in the production of high-quality faucets and sanitary fittings. With over 140 years of experience, KWC is recognized for its innovative designs, premium materials, and superior craftsmanship. From kitchen faucets to showers and bathroom accessories, KWC products combine functionality, aesthetics, and durability. The company prioritizes sustainability and eco-friendly practices in its manufacturing processes. KWC's commitment to excellence has earned it numerous awards and a strong reputation in the industry.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

106 Patents

#4 in Hergiswil

#154 in Switzerland

#7,173 in the World

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Hergiswil, Switzerland

Kwc Ag

Forward Citations = 1,600

52 inventors:

goldMedal Michael Lammel (32 out of 86 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)

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