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Kassel, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Separation of solid particles of various sizes from viscous liquids
Patent number
4,921,615
Issue date
May 1, 1990
Wintershall AG
Walter Lindoerfer
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Pretreatment of solid wastes, and wastes to be compacted, for intro...
Patent number
4,886,393
Issue date
Dec 12, 1989
Wintershall Aktiengesellschaft
Wilhelm Jahn-Held
B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information
Patent Grant
Drilling derrick device
Patent number
4,862,973
Issue date
Sep 5, 1989
Deutag Deutsche Tiefbohr-AG
Eckhard Voigts
E21 - EARTH DRILLING MINING
Information
Patent Grant
Process for the biotechnical production of rhamnolipids including r...
Patent number
4,814,272
Issue date
Mar 21, 1989
Wintershall AG
Fritz Wagner
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Trehalose lipid tetraesters
Patent number
4,720,456
Issue date
Jan 19, 1988
Wintershall AG
Fritz Wagner
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for dumping of particulate solid waste materials in undergr...
Patent number
4,692,061
Issue date
Sep 8, 1987
Wintershall AG
Walter Lindorfer
B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information
Patent Grant
Apparatus for removal of oil from water and adsorbents using glycol...
Patent number
4,663,039
Issue date
May 5, 1987
Wintershall Aktiengesellschaft
Walter Lindorfer
B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information
Patent Grant
Process for storing liquid waste in salt cavities
Patent number
4,577,999
Issue date
Mar 25, 1986
Wintershall AG
Walter Lindorfer
B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information
Patent Grant
Process for terminal storage of pumpable wastes
Patent number
4,576,513
Issue date
Mar 18, 1986
Wintershall AG
Walter Lindorfer
B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information
Patent Grant
Prevention of penetration of oily hydrocarbons into sand
Patent number
4,437,993
Issue date
Mar 20, 1984
Wintershall AG
Walter Lindorfer
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Process for the temporary storage of recyclable liquid wastes in un...
Patent number
4,435,290
Issue date
Mar 6, 1984
Wintershall AG
Walter Lindorfer
B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information
Patent Grant
Process for separating hydrocarbons from particulate solids
Patent number
4,392,892
Issue date
Jul 12, 1983
Wintershall Aktiengesellschaft
Fritz Wagner
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Method for removal of oil from sorbents using glycolipids
Patent number
4,374,735
Issue date
Feb 22, 1983
Wintershall Aktiengesellschaft
Walter Lindorfer
B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information
Patent Grant
Process and installation for the flooding of petroleum deposits and...
Patent number
4,286,660
Issue date
Sep 1, 1981
Gesellschaft fur Biotechnologische Forschung GmbH
Fritz Wagner
E21 - EARTH DRILLING MINING
Information
Patent Grant
Resetting device for the cam head on a deep-well pump drive
Patent number
4,269,082
Issue date
May 26, 1981
Wintershall Aktiengesellschaft
Hermann Engbers
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Method for the tertiary recovery of petroleum by flooding with hot...
Patent number
4,223,730
Issue date
Sep 23, 1980
Wintershall Aktiengesellschaft
Walther Schulz
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Apparatus for producing petroleum coke calcinate
Patent number
4,198,273
Issue date
Apr 15, 1980
Wintershall Aktiengesellschaft
Max Dudek
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Method of producing petroleum coke calcinate
Patent number
4,176,010
Issue date
Nov 27, 1979
Wintershall Aktiengesellschaft
Max Dudek
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Trademark
last 30 trademarks
Information
Trademark
73410875 - WINTERSHALL
Serial number
73410875
Registration number
1303329
Filing date
Jan 25, 1983
Wintershall Aktiengesellschaft
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry