Inventor

Norbert Fortmann

Inventor

Hanover, DE

Overview

8→

Patents

1991–2020

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 8 as inventor

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

F15Bprimary

F15BSystems acting by means of fluids in general44%

Y10TTechnical subjects covered by former us classification19%

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%

F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges6%

F16DCouplings for transmitting rotation6%

F16JPistons6%

H01HElectric switches6%

PatentTitleYear

10,760,318Pneumatic control system2020 6,637,316'Pressure fluid cylinder with optional anti-rotation feature'2003 5,246,237'Seal for a work cylinder operated by pressurized fluid'1993 5,207,146'Working cylinder without piston rod'1993 5,178,548'Connector module for providing electrical contacts to magnet valves'1993 5,144,883'Cylinder without a piston rod'1992 5,115,889'Shaft clamping device'1992 5,022,311'Compact fluid actuated working cylinder with spring loaded tensioning member'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991Patents assigned to WABCO WESTINGHOUSE STEUERUNG (1)· patent assignee history

1991–1993Based in Hanover, DE· patent location history

1992–1993Patents assigned to MANNESMANN AG (4)· patent assignee history

1992Patents assigned to REXROTH PNEUMATIK MANNESMANN (1)· patent assignee history

1993–2020Based in Hannover, DE· patent location history

2003Patents assigned to REXROTH MECMAN GMBH (1)· patent assignee history

2020Patents assigned to AVENTICS GMBH (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MANNESMANN AG	4	1992–1993
AVENTICS GMBH	1	2020
REXROTH MECMAN GMBH	1	2003
REXROTH PNEUMATIK MANNESMANN	1	1992
WABCO WESTINGHOUSE STEUERUNG	1	1991

Locations

Location	Patents	Span
Hanover, DE	5	1991–1993
Hannover, DE	3	1993–2020