Inventor
Peter Kempter
Inventor
Bad Soden, DE
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C09Bprimary
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments60%
C07DHeterocyclic compounds40%
PatentTitleYear
7,686,883'C.I. pigment blue 80-based blue dye'20106,762,299'Mixed crystals of benzimidazolonedioxazine compounds'20046,620,931'Process for preparing new crystal polymorphs of a methyl-substituted benzimidazolone-dioxazine pigment'20036,617,453'Triphendioxazine compounds'20036,359,131'Process for preparing dioxazine compounds'20026,355,795'Triphendioxazine compounds'20026,255,482'Triphendioxazine compounds'20016,162,261'Triphendioxazine'20005,565,563'Triphendioxazine compounds'1996Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1996Patents assigned to SANDOZ LTD (1)· patent assignee history
1996Based in Waldbröl, DE· patent location history
2000–2003Patents assigned to CLARIANT FINANCE BVI LTD (4)· patent assignee history
2000Based in Lorrach, DE· patent location history
2001–2010Based in Bad Soden, DE· patent location history
2002–2004Patents assigned to CLARIANT GMBH (3)· patent assignee history
2010Patents assigned to CLARIANT PRODUKTE DEUTSCHLAND (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CLARIANT FINANCE BVI LTD | 4 | 2000–2003 |
| CLARIANT GMBH | 3 | 2002–2004 |
| CLARIANT PRODUKTE DEUTSCHLAND | 1 | 2010 |
| SANDOZ LTD | 1 | 1996 |
Locations
| Location | Patents | Span |
|---|---|---|
| Bad Soden, DE | 7 | 2001–2010 |
| Lorrach, DE | 1 | 2000 |
| Waldbröl, DE | 1 | 1996 |