Inventor

Christoph Tonnes

Inventor
Klingnau, CH

Overview

10→
Patents
1992–2002
Patent span
Chemistry
Primary field (CPC C)

Patents· 10 as inventor

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

C22Cprimary
C22CAlloys29%
B22FWorking metallic powder24%
F01DNon-positive displacement machines or engines, e.g. steam turbines14%
C23CCoating metallic material10%
C30BSingle-crystal growth10%
Y10TTechnical subjects covered by former us classification10%
C04BLime, magnesia5%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–1995Patents assigned to ASEA BROWN BOVERI (4)· patent assignee history
1992Based in Wettingen, CH· patent location history
1995–1999Patents assigned to ABB RESEARCH LTD (3)· patent assignee history
1995Based in Birmenstorf, CH· patent location history
1998–2002Based in Klingnau, CH· patent location history
2002Patents assigned to ALSTOM SWITZERLAND LTD (2)· patent assignee history
2002Patents assigned to ALSTOM (SWITZERLAND) LTD (1)· patent assignee history
2002Based in Brug, CH· patent location history
2002Based in Brugg, CH· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ASEA BROWN BOVERI41992–1995
ABB RESEARCH LTD31995–1999
ALSTOM SWITZERLAND LTD22002
ALSTOM (SWITZERLAND) LTD12002
Locations
LocationPatentsSpan
Klingnau, CH31998–2002
Birmenstorf, CH31995
Wettingen, CH21992
Brug, CH12002
Brugg, CH12002