Inventor
William R. Darnell
Inventor
Weber City, VA, US
Overview
Patents· 34 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C08Gprimary
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds54%
C08LCompositions of macromolecular compounds11%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients9%
C08JWorking-up4%
C09JAdhesives4%
H05KPrinted circuits4%
A24DCigars2%
A61HPhysical therapy apparatus, e.g. devices for locating or stimulating reflex points in the body2%
B29CShaping or joining of plastics2%
B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts2%
PatentTitleYear
6,417,239'Methods of making modified condensation polymers'20026,403,698'Polyamide/emulsion polymer blends'20026,353,052'Amide-type polymer/silicone polymer blends and processes of making the same'20026,348,163'Liquid crystalline polyesters compositions containing aromatic phosphonites and a process for the preparation thereof'20026,306,946'Liquid crystalline polyesters having a surprisingly good combination of a low melting point, a high heat distortion temperature, a low melt viscosity, and a high tensile elongation'20016,255,437'Process for preparing poly (2,2,4,4-tetramethyl-1,3-cyclobutylene carbonate)'20016,180,748'Process for deactivating alkali metal catalyst residues in poly(2,2,4,4-tetramethyl-1,3-cyclobutylene carbonate residues'20016,114,474'Process for deactivating polycarbonate catalyst residues'20006,037,436'Process for preparing poly (2,2,4,4-tetramethyl-1,3-cyclobutylene carbonate)'20005,969,083'Liquid crystalline polyesters having a surprisingly good combination of a low melting point, a high heat distortion temperature, a low melt viscosity, and a high tensile elongation'19995,962,622'Process for preparing the polycarbonate of 2,2,4,4-tetramethyl-1,3-cyclobutanediol'19995,856,553'Carbonic acid 3-methoxycarbonyloxy-2,2,4,4-tetramethyl-cyclobutyl ester methyl ester and method of making therefor'19995,654,395'Reinforced polyester compositions and method of making same'19975,342,902'Poly(ester-ether) compositions having increased thermal stability'19945,260,409'Liquid crystalline polyester'19935,155,203'Poly (ether-ketone)'19925,066,766'Process for the preparation of poly(ester-carbonates)'19915,006,628'Melt phase polyarylate process'19914,895,923'Polycarbonate of cyclohexylhydroquinone'19904,861,856'Process for the preparation of polyketone and poly(ketone-sulfone) polymers'19894,839,459'Process for the preparation of poly(ether-ketone) polymers'19894,820,794'Process for preparing polyketone in the presence of perfluoroalkyl sulfonic acid and oxide of phosphorus'19894,743,630'Poly(ester-ether-carbonate)'19884,623,675'Aromatic poly(ether-carbonate) containing ethyleneoxy and arylene oxy moieties'19864,551,521'Low-melting copolyester adhesives'19854,533,729'Process for the preparation of polycarbonate polyols'19854,507,256'Process for foaming cellulose acetate rod'19854,360,648'Process for the preparation of polyesters and poly(ester-carbonates)'19824,350,805'Process for the preparation of poly(ester-carbonates)'19824,342,862'Polyesters of trans-1,4-cyclohexanedicarboxylic acid and 2-phenylhydroquinone and modifications thereof'19824,338,422'Preparation of polyesters and poly(ester-carbonates) by acidolysis of aromatic polycarbonates'19824,327,206'Process for preparing poly-1,4-cyclohexanedicarboxylate polyesters having high trans isomer content'19824,079,047'Polyesters containing a critical range of suberic acid'19783,931,073'Hot melt compositions'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1993Patents assigned to EASTMAN KODAK CO (20)· patent assignee history
1976–2002Based in Weber City, VA, US· patent location history
1986Based in Kingsport, TN, US· patent location history
1994–2002Patents assigned to EASTMAN CHEM CO (14)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EASTMAN KODAK CO | 20 | 1976–1993 |
| EASTMAN CHEM CO | 14 | 1994–2002 |
Locations
| Location | Patents | Span |
|---|---|---|
| Weber City, Virginia, US | 33 | 1976–2002 |
| Kingsport, TN, US | 1 | 1986 |