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Inventor

Johannes Uerlichs

Inventor
Woffelsbach, DT

Overview

3→
Patents
1976–1981
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 3 as inventor

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

C21Bprimary
C21BManufacture of iron or steel38%
Y10TTechnical subjects covered by former us classification38%
F16KValves13%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
PatentTitleYear
4,296,776'Gate valve for use in large size conduits'19813,994,315'Control apparatus for air blast preheaters of blast furnaces'19763,970,109'Shutoff and control slide'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1981Patents assigned to RAPPOLD & CO GMBH HERMANN (2)· patent assignee history
1976Patents assigned to HERMANN RAPOLD & CO GMBH (1)· patent assignee history
1976–1981Based in Woffelsbach, DT· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RAPPOLD & CO GMBH HERMANN21976–1981
HERMANN RAPOLD & CO GMBH11976
Locations
LocationPatentsSpan
Woffelsbach, DT31976–1981