Inventor

Friedhelm Kuhn

Inventor

Mulheim, DE

Overview

1985–2012

Patent span

Mechanical engineering

Primary field (CPC F)

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

C21Dprimary

C21DModifying the physical structure of ferrous metals31%

F27BFurnaces, kilns, ovens or retorts in general19%

F27DDetails or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace19%

C23CCoating metallic material6%

F23LSupplying air or non-combustible liquids or gases to combustion apparatus in general6%

F23MCasings, linings, walls or doors specially adapted for combustion chambers, e.g. firebridges6%

F23NRegulating or controlling combustion6%

Y02PClimate change mitigation technologies in the production or processing of goods6%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1985–1986Patents assigned to RUHRGAS AG (4)· patent assignee history

1985–2012Based in Mulheim, DE· patent location history

1986Based in Muhlheim, DE· patent location history

1998–2012Patents assigned to LOI THERMPROCESS GMBH (4)· patent assignee history

2009Based in Muelheim, DE· patent location history

2012Patents assigned to BARTH HORST (1)· patent assignee history

2012Patents assigned to KUEHN FRIEDHELM (1)· patent assignee history

2012Patents assigned to SCHALBERGER WOLFGANG (1)· patent assignee history

Assignee and location history derived from the patent record.

Assignees

Locations