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Inventor

Heinrich Keller

Inventor
Ruschlikon, CH

Overview

2→
Patents
1978–1985
Patent span
Performing operations
Primary field (CPC B)

Patents· 2 as inventor

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

B29Cprimary
B29CShaping or joining of plastics33%
H04LTransmission of digital information, e.g. telegraphic communication33%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests33%
PatentTitleYear
4,510,493'Method and arrangement for local address acquisition by a station in a communication system'19854,120,626'Device for the continuous production of foam blocks of rectangular cross-section'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978Patents assigned to HENNECKE GMBH MASCHF (1)· patent assignee history
1978Based in Troisdorf, DE· patent location history
1985Patents assigned to IBM (1)· patent assignee history
1985Based in Ruschlikon, CH· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HENNECKE GMBH MASCHF11978
IBM11985
Locations
LocationPatentsSpan
Ruschlikon, CH11985
Troisdorf, DE11978