Inventor

Erhard Bergmann

Inventor

Mirow, DE

Overview

11→

Patents

1998–2021

Patent span

Performing operations

Primary field (CPC B)

Patents· 11 as inventor

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

B62Dprimary

B62DMotor vehicles65%

F15BSystems acting by means of fluids in general12%

E05FDevices for moving wings into open or closed position6%

E05YIndexing scheme associated with subclasses e05d and e05f, relating to construction elements, electric control, power supply, power signal or transmission, user interfaces, mounting or coupling, details, accessories, auxiliary operations not otherwise provided for, application thereof6%

E06BFixed or movable closures for openings in buildings, vehicles, fences or like enclosures in general, e.g. doors, windows, blinds, gates6%

Y10TTechnical subjects covered by former us classification6%

PatentTitleYear

11,014,605Hydraulic steering device2021 10,960,923Hydraulic steering facility with load signal2021 10,899,382Hydraulic steering device2021 10,829,148Hydraulic steering device with enhanced fault prevention2020 7,694,776'Hydraulic steering system with protection against uncontrolled steering movements'2010 7,306,071'Hydraulic steering apparatus'2007 5,970,708'Hydraulic steering assembly with change in transmission ratio and flow amplification'1999 5,887,429'Hydraulic steering system with load signal'1999 5,850,888'Variable-ratio hydraulic steering system'1998 5,771,692'Hydraulic steering unit with load signal'1998 5,758,739'Hydraulic steering circuit and steering apparatus'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–1999Patents assigned to HYDRAULIK NORD GMBH (3)· patent assignee history

1998–2010Based in Mirow, DE· patent location history

2007Patents assigned to BOSCH REXROTH AG (1)· patent assignee history

2010Patents assigned to BRUENINGHAUS HYDROMATIK GMBH (1)· patent assignee history

2020–2021Patents assigned to DANFOSS POWER SOLUTIONS PARCHIM GMBH (4)· patent assignee history

2020–2021Patents assigned to HYDRAULIK NORD FLUIDTECHNIK GMBH & CO KG (3)· patent assignee history

2020–2021Based in Banzkow / OT Mirow, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DANFOSS POWER SOLUTIONS PARCHIM GMBH	4	2020–2021
HYDRAULIK NORD FLUIDTECHNIK GMBH & CO KG	3	2020–2021
HYDRAULIK NORD GMBH	3	1998–1999
BOSCH REXROTH AG	1	2007
BRUENINGHAUS HYDROMATIK GMBH	1	2010

Locations

Location	Patents	Span
Mirow, DE	7	1998–2010
Banzkow / OT Mirow, DE	4	2020–2021