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For the Inventor, By the Inventor

Saarbrucken-Brebach, Germany

Halbergerhutte Gmbh


USPTO Granted Patents = 3

Forward Citations = 20

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8 inventors (with patents filed for the assignee):

goldMedal Friedrich Wolfsgruber (1 out of 7 patents)

silverMedal Hans-Georg Hein (1 out of 1 patent)

bronzeMedal Manfred H Odendahl (1 out of 1 patent)

4.  Hans W Kasel (1 out of 1 patent)

5.  Wolfram W Morsdorf (1 out of 1 patent)

6.  Gunter Pieck (1 out of 1 patent)

7.  Hartmut Luhr (1 out of 1 patent)

8.  Karl-Hans Albrecht (1 out of 1 patent)


3 patents:

1. 5165822 - Pipe joint for driving pipes laid underground by the driving technique (1992-11-24),
2. 4693294 - Apparatus for producing by the casting technique a cooling means for (1987-09-15),
3. 4292075 - Slow fade inocculant and a process for the inocculation of melted cast (1981-09-29),
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USPTO Data Jan 1 1976 - Sep 22 2026

3 Patents

#546 in Saarbrucken-Brebach

#8,413 in Germany

Saarbrucken-Brebach, DE
Saarbrucken-Brebach, Germany

Halbergerhutte Gmbh

Forward Citations = 20

8 inventors:

goldMedal Friedrich Wolfsgruber (1 out of 7 patents)

silverMedal Hans-Georg Hein (1 out of 1 patent)

bronzeMedal Manfred H Odendahl (1 out of 1 patent)

4.  Hans W Kasel (1 out of 1 patent)

5.  Wolfram W Morsdorf (1 out of 1 patent)

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