Inventor

Helmut Friedrich

Inventor

Lippstadt, DE

Overview

7→

Patents

1976–2021

Patent span

Fixed constructions

Primary field (CPC E)

Patents· 7 as inventor

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

F02Cprimary

F02CGas-turbine plants23%

E05FDevices for moving wings into open or closed position15%

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 thereof15%

H01HElectric switches15%

B64DEquipment for fitting in or to aircraft8%

C03BManufacture, shaping, or supplementary processes8%

F02NStarting of combustion engines8%

G08BSignalling systems, e.g. personal calling systems8%

PatentTitleYear

11,078,707Safety contact strip2021 6,888,081'Safety contact mat'2005 6,740,826'Safety contact strip'2004 6,715,317'Process and apparatus for the production of a cylindrical component of glass'2004 4,147,025'Formation of auxiliary drive gas for turbine'1979 4,092,824'Method of operating a turbine'1978 3,965,673'Apparatus for starting aircraft engines and for operating auxiliary on-board power generating equipment'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1979Patents assigned to VER FLUGTECHNISCHE WERKE (3)· patent assignee history

1976–1979Based in Bremen, DE· patent location history

1978Based in Stuhr, DE· patent location history

2004–2005Patents assigned to ASO GMBH ANTRIEBS UND STEUERUN (2)· patent assignee history

2004Patents assigned to HERAEUS TENEVO AG (1)· patent assignee history

2004–2021Based in Lippstadt, DE· patent location history

2004Based in Dieburg, DE· patent location history

2021Patents assigned to ASO GMBH ANTRIEBS UND STEUERUNGSTECHNIK (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
VER FLUGTECHNISCHE WERKE	3	1976–1979
ASO GMBH ANTRIEBS UND STEUERUN	2	2004–2005
ASO GMBH ANTRIEBS UND STEUERUNGSTECHNIK	1	2021
HERAEUS TENEVO AG	1	2004

Locations

Location	Patents	Span
Lippstadt, DE	3	2004–2021
Bremen, DE	2	1976–1979
Dieburg, DE	1	2004
Stuhr, DE	1	1978