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Inventor

Helmut Fiedler

Inventor
GlenEllyn, IL, US

Overview

3→
Patents
1977–1984
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 3 as inventor

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

F02Bprimary
F02BInternal-combustion piston engines17%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof17%
G05BControl or regulating systems in general17%
H03KPulse technique17%
H04LTransmission of digital information, e.g. telegraphic communication17%
Y02TClimate change mitigation technologies related to transportation17%
PatentTitleYear
4,441,868'Fuel injection pump for internal combustion engines'19844,318,185'Programmable switching device'19824,055,775'Transmission circuit for direct current data transmission'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977Patents assigned to SIEMENS AG (1)· patent assignee history
1977Based in Gartenberg, DE· patent location history
1982Patents assigned to FIEDLER HELMUT (1)· patent assignee history
1982Based in Siegertsbrunn, DE· patent location history
1984Patents assigned to BOSCH GMBH ROBERT (1)· patent assignee history
1984Based in GlenEllyn, IL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BOSCH GMBH ROBERT11984
FIEDLER HELMUTself11982
SIEMENS AG11977
Locations
LocationPatentsSpan
GlenEllyn, Illinois, US11984
Siegertsbrunn, DE11982
Gartenberg, DE11977