Inventor
Johan Wanngard
Inventor
Angered, SE
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C01Bprimary
C01BNon-metallic elements57%
C25BElectrolytic or electrophoretic processes for the production of compounds or non-metals43%
PatentTitleYear
6,299,852'Process for production of a chemical compound'20016,210,651'Process for producing hydrogen peroxide'20015,961,948'Method of producing hydrogen peroxide'19995,419,818'Process for the production of alkali metal chlorate'19955,338,414'Electrolytic cell, electrolyzer and a method of performing electrolysis'19945,292,406'Process for electrolytic production of alkali metal chlorate and auxiliary chemicals'19944,678,653'Process for preparing chlorine dioxide'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987Patents assigned to KEMA NORD AB (1)· patent assignee history
1987–1995Based in Sundsvall, SE· patent location history
1994–1995Patents assigned to EKA NOBEL AB (2)· patent assignee history
1994Patents assigned to PERMASCAND AB (1)· patent assignee history
1994Based in Linjevagen, SE· patent location history
1999Patents assigned to EKA CHEMICALS AB (1)· patent assignee history
1999–2001Based in Angered, SE· patent location history
2001Patents assigned to AKZO NOBEL NV (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| AKZO NOBEL NV | 2 | 2001 |
| EKA NOBEL AB | 2 | 1994–1995 |
| EKA CHEMICALS AB | 1 | 1999 |
| KEMA NORD AB | 1 | 1987 |
| PERMASCAND AB | 1 | 1994 |
Locations
| Location | Patents | Span |
|---|---|---|
| Angered, SE | 3 | 1999–2001 |
| Sundsvall, SE | 3 | 1987–1995 |
| Linjevagen, SE | 1 | 1994 |