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For the Inventor, By the Inventor

Velbert, Germany

Stein & Co. Gmbh


USPTO Granted Patents = 33

% Expired Patents = 9.1



Trademarks = 10

Forward Citations = 275

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7 inventors (with patents filed for the assignee):

goldMedal Thomas Stein (20 out of 20 patents)

silverMedal Klaus Stein (9 out of 11 patents)

bronzeMedal Achim Liffers (8 out of 8 patents)

4.  Heinz Kaulig (8 out of 8 patents)

5.  Bernd Falkenstein (6 out of 6 patents)

6.  Hartmut Boll (3 out of 3 patents)

7.  Andreas Laaser (2 out of 2 patents)


Core Competencies:
Floor Care Appliance
Vacuum Cleaner
Brush Roller
Motor Protection Filter
Filter Bag
Floor Cleaning Machine
Height Adjustable Drive
Rotating Brush
Electrified Wand
Exhaust Filter
Cleaning Method
Floor Polishing Machine

33 patents:

1. 9737185 - Floor care appliance (2017-08-22),
2. 9700184 - Floor care appliance (2017-07-11),
3. 9615711 - Floor care appliance (2017-04-11),
4. 9615707 - Floor care appliance (2017-04-11),
5. 9596968 - Floor care appliance (2017-03-21),
6. 9585532 - Brush roller of a floor cleaning device (2017-03-07),
7. 9565982 - Floor care appliance (2017-02-14),
8. 9560945 - Floor care appliance (2017-02-07),
9. 9451857 - Bearing arrangement of a rotating brush roller (2016-09-27),
10. 9089250 - Vacuum cleaner with motor speed indicator (2015-07-28),
11. 8745817 - Arrangement of a motor protection filter in a vacuum cleaner (2014-06-10),
12. 8640302 - Arrangement for positioning and holding a filter bag in a vacuum cleaner (2014-02-04),
13. 8287655 - Method for cleaning dirt and debris from surfaces (2012-10-16),
14. 8272094 - Floor care disk (2012-09-25),
15. 8070561 - Height adjustable drive arrangement for a floor care machine (2011-12-06),
Company Overview
Stein & Co. GmbH, based in Velbert, Germany, specializes in the development and manufacturing of high-quality precision tools and components. The company focuses on advanced engineering solutions, particularly in the fields of automotive and industrial applications. With a commitment to innovation, Stein & Co. integrates cutting-edge technology into its products, ensuring reliability and performance. The organization serves a diverse clientele, emphasizing quality and precision in every aspect of its operations.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

Stein & Co. Gmbh USPTO Patent Assignee Logo
33 Patents

#5 in Velbert

#1,492 in Germany

#20,147 in the World

Velbert, DE
Velbert, Germany

Stein & Co. Gmbh

Forward Citations = 275

7 inventors:

goldMedal Thomas Stein (20 out of 20 patents)

silverMedal Klaus Stein (9 out of 11 patents)

bronzeMedal Achim Liffers (8 out of 8 patents)

4.  Heinz Kaulig (8 out of 8 patents)

5.  Bernd Falkenstein (6 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Stein & Co. Gmbh. Retrieved from https://idiyas.com/company/stein-andcompany

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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