Compound for organic electric element, organic electric element comprising the same and electronic device thereof
US-2015380661-A1 · Dec 31, 2015 · US
Fused Ring Indeno Compounds For Preparation Of Photochromic Compounds
US2015141663A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2015141663-A1 |
| Application number | US-201314084830-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 20, 2013 |
| Priority date | Nov 20, 2013 |
| Publication date | May 21, 2015 |
| Grant date | — |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
The present invention relates to intermediate compounds represented by the following Formula (I-A), The intermediate compounds of the present invention, such as represented by Formula (I-A), can be used to prepare photochromic compounds, such as photochromic fused ring indenopyran compounds, including but not limited to photochromic fused ring indeno-naphtho-pyran compounds.
First claim
Opening claim text (preview).
What is claimed is: 1 . An intermediate compound for preparation of a photochromic compound, wherein said intermediate compound is represented by the following Formula (I-A), wherein, Ring-A is selected from aryl and fused ring aryl, n is selected from 1 to 8, R 1 for each n is in each case independently selected from hydrogen, hydrocarbyl and substituted hydrocarbyl ea…
Assignees
Inventors
Classifications
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2015141663A1 cover?
- The present invention relates to intermediate compounds represented by the following Formula (I-A), The intermediate compounds of the present invention, such as represented by Formula (I-A), can be used to prepare photochromic compounds, such as photochromic fused ring indenopyran compounds, including bu…
- Who is the assignee on this patent?
- Transitions Optical Inc
- What technology area does this patent fall under?
- Primary CPC classification C07D307/93. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu May 21 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).