Cellulose ester optical films
US-9975967-B2 · May 22, 2018 · US
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Buchanan Charles Michael patents
Buchanan Charles Michael holds 5 patents in our database, with recent filings and technology areas summarized below.
| Metric | Value |
|---|---|
| Total patents | 5 |
| Recent patents | 0 |
| First publication | Aug 4, 2015 |
| Latest publication | May 22, 2018 |
Filing trend
Year-over-year patent counts for this assignee.
Recent patents
Latest publications where this party is an assignee.
Regioselectively substituted cellulose esters produced in a carboxylated ionic liquid process and products produced therefrom
US-9834516-B2 · Dec 5, 2017 · US
Cellulose ester optical films
US-9796791-B2 · Oct 24, 2017 · US
Treatment of cellulose esters
US-9156918-B2 · Oct 13, 2015 · US
Cellulose ester optical films
US-9096691-B2 · Aug 4, 2015 · US
Notable patents
Representative or frequently cited publications from precomputed assignee stats.
Cellulose ester optical films
US-9975967-B2 · May 22, 2018 · US
Regioselectively substituted cellulose esters produced in a carboxylated ionic liquid process and products produced therefrom
US-9834516-B2 · Dec 5, 2017 · US
Cellulose ester optical films
US-9796791-B2 · Oct 24, 2017 · US
Treatment of cellulose esters
US-9156918-B2 · Oct 13, 2015 · US
Cellulose ester optical films
US-9096691-B2 · Aug 4, 2015 · US
Top CPC classifications
Most common classification codes in this portfolio.
| CPC | Patents |
|---|---|
| C08B3/16 | 5 |
| C08B3/06 | 4 |
| C08J2301/14 | 4 |
| C08J5/18 | 4 |
| B32B2457/202 | 3 |
Technology areas
Mapped technology topics for this assignee.
| Technology | Patents |
|---|---|
| Chemistry & Metallurgy | 5 |
| Physics | 4 |
| Operations & Transport | 3 |
| Cross-Sectional Technologies | 3 |