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For the Inventor, By the Inventor

Düsseldorf, Germany

Mannesmann Aktiengesellschaft


USPTO Granted Patents = 1,178

% Expired Patents = 0.59


Trademarks = 1

Forward Citations = 10,469

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1,478 inventors (with patents filed for the assignee):

goldMedal Fritz-Peter Pleschiutschnigg (36 out of 62 patents)

silverMedal Hans Schrewe (25 out of 25 patents)

bronzeMedal Wolfgang Hauslaib (23 out of 24 patents)

4.  Udo Gersemsky (21 out of 31 patents)

5.  Bernd Gugel (20 out of 35 patents)

6.  Wolfgang Reichelt (18 out of 21 patents)

7.  Ingo Von Hagen (18 out of 20 patents)

8.  Ewald Feuerstacke (17 out of 17 patents)

9.  Johann Stempfle (16 out of 25 patents)

10.  Ulrich Urlau (16 out of 21 patents)

11.  Lothar Parschat (16 out of 23 patents)

12.  Karl Ries (16 out of 18 patents)

13.  Roland Staggl (15 out of 15 patents)

14.  Rudolf Moller (15 out of 31 patents)

15.  Wolfgang Hendrischk (15 out of 15 patents)


Core Competencies:
Telecommunication Networks
Traffic Information
Steel Production
Data Transmission
Mobile Networks
Continuous Casting
Compression Devices
Virtual Private Networks
Gas Storage
Pipe Coupling
User Group Detection
Traffic Data

1,178 patents:

1. 6965768 - Allocation of a channel for data calls with a different useful signal/ disturb signal ratio than for channels used for voice calls in mobile radio networks (2005-11-15),
2. 6847815 - METHOD FOR DETECTING, ON A TELECOMMUNICATION NETWORK SIDE, THE COMPLEXITY, ON THE TELECOMMUNICATION NETWORK SIDE, OF A TELECOMMUNICATION LINK BETWEEN TWO SUBSCRIBERS IN ORDER TO DETERMINE THE RATE, AND DEVICE FOR REALISING THE SAME (2005-01-25),
3. 6701999 - Method and device for producing slabs of steel (2004-03-09),
4. 6690919 - Determining the quality of telecommunication services (2004-02-10),
5. 6650891 - SMS-supported method for online/offline detection of user groups in mobile wireless networks (2003-11-18),
6. 6644151 - Apparatus for the continuous, chipless separation of individual, identical disk-shaped blanks or rods from round bar-shaped workpieces (2003-11-11),
7. 6633808 - Method for transmitting traffic information (2003-10-14),
8. 6626229 - Method and device for producing slabs (2003-09-30),
9. 6618667 - Method for identifying events which cover more than one segment using segments (2003-09-09),
10. 6615632 - Parting tool (2003-09-09),
11. 6611749 - Binary transmission system (2003-08-26),
12. 6611194 - Method for inserting a service key in a terminal and devices for implementing said method (2003-08-26),
13. 6585299 - Pipe connector (2003-07-01),
14. 6585032 - Strip casting plant (2003-07-01),
15. 6568461 - Continuous casting facility and process for producing thin slabs (2003-05-27),
Mannesmann Aktiengesellschaft is a German engineering conglomerate that specializes in various industries including telecommunications, automotive, and industrial engineering. They provide innovative solutions and products in areas such as steel, pipes, mechanical engineering, energy, and electronics. With a rich history dating back to the 19th century, Mannesmann has established itself as a trusted global leader in its respective sectors.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 22 2026

Mannesmann Aktiengesellschaft
1,178 Patents

#2 in Düsseldorf

#40 in Germany

#873 in the World

Düsseldorf, DE
Düsseldorf, Germany

Mannesmann Aktiengesellschaft

Forward Citations = 10,469

1,478 inventors:

goldMedal Fritz-Peter Pleschiutschnigg (36 out of 62 patents)

silverMedal Hans Schrewe (25 out of 25 patents)

bronzeMedal Wolfgang Hauslaib (23 out of 24 patents)

4.  Udo Gersemsky (21 out of 31 patents)

5.  Bernd Gugel (20 out of 35 patents)

Please report any incorrect information to [email protected]
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