Inventor

Hans-Jürgen Friedrich

Inventor
Königsberg, DE

Overview

13→
Patents
1976–2019
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 13 as inventor

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

F16Cprimary
F16CShafts29%
Y10TTechnical subjects covered by former us classification17%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
B23PMetal-working not otherwise provided for4%
B65GTransport or storage devices, e.g. conveyors for loading or tipping, shop conveyor systems or pneumatic tube conveyors4%
G21CNuclear reactors4%
H01JElectric discharge tubes or discharge lamps4%
H04LTransmission of digital information, e.g. telegraphic communication4%
H04WWireless communication networks4%
H05BElectric heating4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1978Based in Poering, DE· patent location history
2000–2006Patents assigned to SKF GMBH (3)· patent assignee history
2003Based in Knigsberg, DE· patent location history
2005–2016Patents assigned to SKF AB (4)· patent assignee history
2005–2013Based in Königsberg, DE· patent location history
2013–2016Patents assigned to BEYFUSS BERTHOLD (3)· patent assignee history
2013–2016Patents assigned to RADINA ALFRED (3)· patent assignee history
2013–2016Patents assigned to SCHIERLING JONAS (3)· patent assignee history
2016Based in Königsberg-Römershofen, DE· patent location history
2019Based in Nuremberg, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SKF AB42005–2016
BEYFUSS BERTHOLD32013–2016
RADINA ALFRED32013–2016
SCHIERLING JONAS32013–2016
SKF GMBH32000–2006
Locations
LocationPatentsSpan
Königsberg, DE42005–2013
Poering, DE21976–1978
Nuremberg, DE12019
Königsberg-Römershofen, DE12016
Knigsberg, DE12003