Inventor

Manfred Schroeder

Inventor
Marl, DE

Overview

8→
Patents
1977–2000
Patent span
Chemistry
Primary field (CPC C)

Patents· 8 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds17%
H04BTransmission17%
A47LDomestic washing or cleaning8%
A61FFilters implantable into blood vessels8%
B31DMaking articles of paper, cardboard or material worked in a manner analogous to paper, not provided for in subclasses b31b or b31c8%
C01GCompounds containing metals not covered by subclasses c01d or c01f8%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds8%
D04HMaking textile fabrics, e.g. from fibres or filamentary material8%
G10LSpeech analysis techniques or speech synthesis8%
H03MCoding8%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1979Patents assigned to BELL TELEPHONE LABOR INC (2)· patent assignee history
1977–1979Based in Gottingen, DE· patent location history
1978–1983Patents assigned to HUELS CHEMISCHE WERKE AG (4)· patent assignee history
1978–1983Based in Marl, DE· patent location history
1991Patents assigned to MCNEIL PPC INC (1)· patent assignee history
1991Based in Freehold, NJ, US· patent location history
2000Patents assigned to WHIRLPOOL CO (1)· patent assignee history
2000Based in Saarbruchen, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HUELS CHEMISCHE WERKE AG41978–1983
BELL TELEPHONE LABOR INC21977–1979
MCNEIL PPC INC11991
WHIRLPOOL CO12000
Locations
LocationPatentsSpan
Marl, DE41978–1983
Gottingen, DE21977–1979
Saarbruchen, DE12000
Freehold, New Jersey, US11991