US Patent 7459555 Photochromic naphthopyrans
Patent 7459555 was granted and assigned to Rodenstock GmbH on December, 2008 by the United States Patent and Trademark Office.
All edits
Edits on 15 Sep, 2023
Golden AI
Edits made to:
Article (+408 characters)
Article
Patent abstract
The present invention relates to photochromic 2H-naphtho[1,2-b]pyrans as well as their use in synthetic resins of all types, especially for ophthalmic purposes. In particular, the present invention relates to photochromic naphthopyran compounds, for which a further ring system is bonded to the f side of the naphthopyran. The inventive photochromic dyes generally have the general formula (I)
Edits on 5 Aug, 2023
Golden AI
Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
74595550
Date of Patent
December 2, 2008
0Patent Application Number
100135180
Date Filed
December 13, 2001
0Patent Primary Examiner
Edits on 24 May, 2023
Golden AI
Edits made to:
Infobox (+1/-1 properties)
US Patent 07459555 Photochromic naphthopyrans US Patent 7459555 Photochromic naphthopyrans
Infobox
Patent Number
0745955500
Patent Number
745955500
Edits on 20 May, 2023
Golden AI
Edits made to:
Infobox (-1 properties)
Infobox
Official Website
Edits on 3 Apr, 2023
Golden AI
Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
074595550
Date of Patent
December 2, 2008
0Patent Application Number
100135180
Date Filed
December 13, 2001
0Official Website
Patent Primary Examiner
Edits on 22 Sep, 2022
Golden AI
Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
074595550
Date of Patent
December 2, 2008
0Patent Application Number
100135180
Date Filed
December 13, 2001
0Official Website
Patent Primary Examiner
Edits on 14 Jun, 2022
Golden AI
Edits made to:
Infobox (+1 properties)
Infobox
Website URL
Edits on 1 Dec, 2021
Golden AI
Edits made to:
Infobox (+8 properties)
US Patent 07459555 Photochromic naphthopyrans
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07459555
Date of patent
December 2, 2008
Patent application number
10013518
Date Filed
December 13, 2001
Patent primary examiner
Find more entities like US Patent 7459555 Photochromic naphthopyrans
Use the Golden Query Tool to find similar entities by any field in the Knowledge Graph, including industry, location, and more.
By using this site, you agree to our Terms of Service.