Inventor
Andreas Winterfeldt
Inventor
Barsinghausen, DE
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Sprimary
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests24%
A62BDevices, apparatus or methods for life-saving12%
C07CAcyclic or carbocyclic compounds12%
C09KMaterials for miscellaneous applications, not provided for elsewhere12%
C23DEnamelling of, or applying a vitreous layer to, metals12%
F21KNon-electric light sources using luminescence12%
H05BElectric heating12%
C07DHeterocyclic compounds6%
PatentTitleYear
6,699,598'Laminar body having phosphorescent properties, process for producing it and its use'20046,528,186'Stratified composite with phosphorescent properties, method for the production and the use thereof'20035,919,579'Organic electroluminescent device'19995,871,854'Organic electroluminescent device'19995,430,202'Process for the preparation of substantially fluorinated alkyl bromides'19955,336,818'Process for the preparation of substantially fluorinated alkyl bromides'1994Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1994–1995Patents assigned to RIEDEL DE HAEN AG (2)· patent assignee history
1994–1999Based in Barsinghausen, DE· patent location history
1999Patents assigned to HOECHST AG (2)· patent assignee history
2003–2004Patents assigned to HONEYWELL INT INC (2)· patent assignee history
2003–2004Based in Egestorf, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HOECHST AG | 2 | 1999 |
| HONEYWELL INT INC | 2 | 2003–2004 |
| RIEDEL DE HAEN AG | 2 | 1994–1995 |
Locations
| Location | Patents | Span |
|---|---|---|
| Barsinghausen, DE | 4 | 1994–1999 |
| Egestorf, DE | 2 | 2003–2004 |