Inventor
Wilfred Sweeny
Inventor
Wilmington, DE, US
Overview
Patents· 10 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 bonds32%
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons21%
D06MTreatment, not provided for elsewhere in class d06, of fibres, threads, yarns, fabrics, feathers or fibrous goods made from such materials11%
D21HPulp compositions11%
C08JWorking-up5%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients5%
C08LCompositions of macromolecular compounds5%
C23CCoating metallic material5%
Y10TTechnical subjects covered by former us classification5%
PatentTitleYear
5,549,972'Silver-plated fibers of poly(p-phenylene terephthalamide) and a process for making them'19965,100,434'Polybenzobisthiazole and polybenzobisoxazole fibers of improved compressive properties'19925,077,377'Process for preparing melt-processible aromatic polyamides with alkali metal fluoride catalyst'19915,021,123'Process for producing paper from a poly(paraphenylene terephthalamide) fibrous gel'19914,980,446'Melt-processible aromatic containing copolyamide from 3,4\'-bis (amino phenyl)ether'19904,959,453'Process for the preparation of a poly(paraphenylene terephthalamide)fibrous gel composition and a process to produce poly(paraphenylene terephthalamide) paper from the composition'19904,785,038'Solvent system for difficultly soluble polymers'19884,782,131'Ester interchange polyester preparation with alkali metal fluoride catalyst'19884,608,427'Method for making PBO and PBT polymers'19864,603,041'Cyclization of acrylic fiber'1986Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1986–1996Patents assigned to DU PONT (10)· patent assignee history
1986–1996Based in Wilmington, DE, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DU PONT | 10 | 1986–1996 |
Locations
| Location | Patents | Span |
|---|---|---|
| Wilmington, Delaware, US | 10 | 1986–1996 |