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Houilleres Du Bassin Du Nord Et Du Pasde-calais

USPTO Granted Patents = 3

Forward Citations = 15

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8 inventors (with patents filed for the assignee):

Raymond Chauvin (1 out of 4 patents)

Charles Boel (1 out of 1 patent)

Jean-Pierre Cottin (1 out of 1 patent)

4. Francois Guitard (1 out of 1 patent)

5. Maurice Marchasson (1 out of 2 patents)

6. Alban Dondeyne (1 out of 1 patent)

7. Paul Ravez (1 out of 1 patent)

8. Louis Soubrier (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 4193355 - Furnace walls which can be used at high temperatures (1980-03-18),

2. 3979168 - Apparatus for the manufacture of light granulates (1976-09-07),

3. 3971175 - Factory-made habitation cell (1976-07-27),

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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#1 in Doual

#3,973 in France

Houilleres Du Bassin Du Nord Et Du Pasde-calais

Forward Citations = 15

8 inventors:

Raymond Chauvin (1 out of 4 patents)

Charles Boel (1 out of 1 patent)

Jean-Pierre Cottin (1 out of 1 patent)

4. Francois Guitard (1 out of 1 patent)

5. Maurice Marchasson (1 out of 2 patents)

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