Inventor

Alfred Schlemenat

Inventor

Herten, DE

Overview

1989–2000

Patent span

Mechanical engineering

Primary field (CPC F)

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

F28Dprimary

F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact18%

F28FDetails of heat-exchange and heat-transfer apparatus, of general application18%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests18%

F01DNon-positive displacement machines or engines, e.g. steam turbines9%

F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges9%

F16LPipes9%

F16MFrames, casings or beds of engines, machines or apparatus, not specific to engines, machines or apparatus provided for elsewhere9%

Y10TTechnical subjects covered by former us classification9%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1989–1993Patents assigned to GUTEHOFFNUNGSHUETTE MAN (2)· patent assignee history

1989Based in Dornchen, DE· patent location history

1993–2000Based in Herten, DE· patent location history

2000Patents assigned to GHH BORSIG TURBOMASCHINEN GMBH (1)· patent assignee history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
GUTEHOFFNUNGSHUETTE MAN	2	1989–1993
GHH BORSIG TURBOMASCHINEN GMBH	1	2000

Locations

Location	Patents	Span
Herten, DE	3	1993–2000
Dornchen, DE	1	1989