Inventor

Walther Schulz

Inventor

Vechta, DE

Overview

9→

Patents

1980–1988

Patent span

Chemistry

Primary field (CPC C)

Patents· 9 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C09Kprimary

C09KMaterials for miscellaneous applications, not provided for elsewhere22%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%

B01DSeparation9%

C02FTreatment of water, waste water, sewage, or sludge9%

E21BEarth or rock drilling9%

B09CReclamation of contaminated soil6%

C10GCracking hydrocarbon oils6%

C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture6%

B60HArrangements of heating, cooling, ventilating or other air-treating devices specially adapted for passenger or goods spaces of vehicles3%

C07HSugars3%

PatentTitleYear

4,720,456'Trehalose lipid tetraesters'1988 4,663,039'Apparatus for removal of oil from water and adsorbents using glycolipids'1987 4,437,993'Prevention of penetration of oily hydrocarbons into sand'1984 4,427,528'Process for extracting crude oil from tar sands'1984 4,392,892'Process for separating hydrocarbons from particulate solids'1983 4,374,735'Method for removal of oil from sorbents using glycolipids'1983 4,286,660'Process and installation for the flooding of petroleum deposits and oil shale'1981 4,284,509'Process for removing oils or petroleum from the surface of the sea'1981 4,223,730'Method for the tertiary recovery of petroleum by flooding with hot water and an aqueous alkaline solution'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–1988Patents assigned to WINTERSHALL AG (6)· patent assignee history

1980–1987Based in Vechta, DE· patent location history

1981–1987Patents assigned to BIOTECHNOLOG FORSCHUNG GMBH (6)· patent assignee history

1984Patents assigned to JAHN HELD WILHELM (1)· patent assignee history

1984Patents assigned to LINDOERFER WALTER (1)· patent assignee history

1984Patents assigned to SCHULZ WALTHER (1)· patent assignee history

1988Based in Staufenberg, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BIOTECHNOLOG FORSCHUNG GMBH	6	1981–1987
WINTERSHALL AG	6	1980–1988
JAHN HELD WILHELM	1	1984
LINDOERFER WALTER	1	1984
SCHULZ WALTHERself	1	1984

Locations

Location	Patents	Span
Vechta, DE	8	1980–1987
Staufenberg, DE	1	1988