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For the Inventor, By the Inventor

Gothenburg, Sweden

Ab Skf

USPTO Granted Patents = 83

% Expired Patents = 43.4



Forward Citations = 427

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155 inventors (with patents filed for the assignee):

goldMedal Hans-Joachim Vom Stein (9 out of 21 patents)

silverMedal Hendrik Anne Mol (6 out of 33 patents)

bronzeMedal Arno Stubenrauch (5 out of 18 patents)

4.  Jürgen Kurth (5 out of 10 patents)

5.  Armin Olschewski (4 out of 161 patents)

6.  Jürgen Gegner (4 out of 4 patents)

7.  Gunter Neder (3 out of 14 patents)

8.  Manfred Brandenstein (3 out of 181 patents)

9.  Ludwig Edelmann (2 out of 30 patents)

10.  Bernd Stephan (2 out of 11 patents)

11.  Jens Graf (2 out of 14 patents)

12.  Christian Knoche (2 out of 7 patents)

13.  Walter Holweger (2 out of 7 patents)

14.  Guillermo Enrique Morales Espejel (2 out of 14 patents)

15.  Charlotte Vieillard (2 out of 7 patents)


Core Competencies:
Frictionless Shaft Seal
Bearing Housing
Lubricant
Rolling Element Bearing
Sealing Arrangement
Ceramic Components
Linear Drive Device
Vibration Detection Device
Medical Device Bearings
Ultra-Low Viscosity Fluids
Compressor Shaft Seal
Quick-Releasing Linear Actuator

83 patents:

1. 9322475 - Frictionless shaft seal (2016-04-26),
2. 9028627 - Method for case hardening a component by means of oil jets and device for carrying out said method (2015-05-12),
3. 9004493 - Seal arrangement and hinge of a chain with the seal arrangement (2015-04-14),
4. D716352 - Bearing housing (2014-10-28),
5. 8841244 - Use of a lubricant (2014-09-23),
6. 8772190 - Large ceramic component and method of manufacture (2014-07-08),
7. 8771585 - Method for manufacturing ceramic components (2014-07-08),
8. 8485926 - Sealing arrangement and link of a chain with said sealing arrangement (2013-07-16),
9. 8476204 - Lubricant and use of a lubricant (2013-07-02),
10. 8397871 - Bearing lubrication device (2013-03-19),
11. 8360650 - Method for lubricating a rolling element bearing by means of an ultra low viscosity volatile fluid, and bearing arrangement (2013-01-29),
12. 8322726 - Compressor shaft seal (2012-12-04),
13. 8231277 - Sliding bearing with different sets of cavities (2012-07-31),
14. 8137000 - Wheel bearing (2012-03-20),
15. 8070363 - Bearing arrangement (2011-12-06),
Company Overview
Ab SKF, headquartered in Gothenburg, Sweden, is a leading global provider of bearing technology and related solutions. The company specializes in the development and manufacturing of a wide range of products, including frictionless shaft seals, bearing housings, and rolling element bearings. SKF is also known for its innovations in lubricant technologies, sealing arrangements, and ceramic components. With a strong focus on enhancing performance and reliability, SKF serves various industries, contributing to advancements in vibration detection and linear drive devices.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

Ab Skf USPTO Patent Assignee Logo
83 Patents

#16 in Gothenburg

#88 in Sweden

#9,158 in the World

Gothenburg, SE
Gothenburg, Sweden

Ab Skf

Forward Citations = 427

155 inventors:

goldMedal Hans-Joachim Vom Stein (9 out of 21 patents)

silverMedal Hendrik Anne Mol (6 out of 33 patents)

bronzeMedal Arno Stubenrauch (5 out of 18 patents)

4.  Jürgen Kurth (5 out of 10 patents)

5.  Armin Olschewski (4 out of 161 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ab Skf. Retrieved from https://idiyas.com/company/ab-skf

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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