% Expired Patents = 28.6

CIPO Patents = 4

EPO Patents = 8

Forward Citations = 11

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25 inventors (with patents filed for the assignee):

Jörn Winkels (3 out of 4 patents)

Hans-Juergen Kocks (3 out of 3 patents)

Joern Winkels (3 out of 3 patents)

4. Rainer Goering (2 out of 22 patents)

5. Andreas Dowe (2 out of 21 patents)

6. Holger Brauer (2 out of 2 patents)

7. Markus Hartmann (1 out of 7 patents)

8. Klaus Gahlmann (1 out of 6 patents)

9. Martin Risthaus (1 out of 9 patents)

10. Hans-Jürgen Kocks (1 out of 1 patent)

11. Steffen Keitel (1 out of 3 patents)

12. Jan Neubert (1 out of 2 patents)

13. Sebastian Rude (1 out of 1 patent)

14. Reinhard Beuth (1 out of 9 patents)

15. Claudia Behrens (1 out of 2 patents)

7 patents: Sort by Forward Citations

1. 10099319 - Device for connecting the ends of pipes made of steel by means of an orbital welding process (2018-10-16),

2. 10072786 - Use of a conduit pipe for producing a duct laid in water (2018-09-11),

3. 9982410 - Polyamide-sheathed structural steel tubes for offshore structures (2018-05-29),

4. 9574700 - Method of producing an underground pipeline (2017-02-21),

5. 9535040 - Method for testing connections of metal workpieces to plastic compounds for cavities by means of ultrasound (2017-01-03),

6. 9134116 - Method and apparatus for measurement of the profile geometry of cylindrical bodies (2015-09-15),

7. 8756999 - Ultrasonic probe (2014-06-24),

Company Overview

Salzgitter Mannesmann Line Pipe is a leading global manufacturer of steel pipes for a variety of applications, including oil and gas, water supply, and construction. With state-of-the-art production facilities and a commitment to quality, the company delivers reliable and innovative solutions to meet the needs of its customers worldwide.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

7 Patents

#9 in Siegen

#4,865 in Germany

Siegen, Germany

Salzgitter Mannesmann Line Pipe Gmbh

Forward Citations = 11

25 inventors:

Jörn Winkels (3 out of 4 patents)

Hans-Juergen Kocks (3 out of 3 patents)

Joern Winkels (3 out of 3 patents)

4. Rainer Goering (2 out of 22 patents)

5. Andreas Dowe (2 out of 21 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Salzgitter Mannesmann Line Pipe Gmbh. Retrieved from https://idiyas.com/company/salzgitter-mannesmann-line-pipe

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]

4 patents (CIPO):

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]

8 patents (EPO):

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]