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Teflon® AF Licenses

E.I. du Pont de Nemours and Company is a technological leader in the field of amorphous fluoroplastics and obtains patents relating to its developments in this field, as well as in many others. These patents are used by Chemours to expand the market for articles made from Teflon® AF amorphous fluoroplastics, for the benefit of Chemours, its customers, and licensees of such patents. Licenses may be available for applications such as self-supporting films, optical lenses, layered structures, coated film, coated foil, fluid handling articles, containment and conveyance articles, composite for electronic circuit boards, electronic use as dielectric layer, coated electronic circuitry, or fiber optic core or cladding. Parties interested in such licensing should consult the list of patents. Such potential licenses are not to be construed as encouraging infringement of any third party patented claims.


Patent Notice

Teflon® AF fluoroplastic resins are products of E.I. du Pont de Nemours and Company and are protected under one or more of the following U.S. Patents: 5,276,121; 5,326,839; 5,353,368; 5,324,889; 5,338,608; 5,310,838; 5,354,910; and 5,408,020. DEPENDING UPON THE APPLICATION, IT MAY BE NECESSARY FOR THE PURCHASER OF THIS RESIN TO OBTAIN A SEPARATE LICENSE TO USE THE PURCHASED QUANTITY OF TEFLON® AF FLUOROPLASTIC RESIN UNDER ONE OR MORE OF THE FOLLOWING DUPONT U.S. PATENTS AND/OR THEIR FOREIGN EQUIVALENTS: 5,296,283; 5,308,685; and 5,051,114.

The purchase price of Teflon® AF fluoroplastic resin from Chemours DOES NOT include a royalty for use of the purchased quantity of resin under the above-cited Chemours U.S. Patents. NO RIGHT OR LICENSE IS GRANTED OR IS TO BE IMPLIED BY THE MERE PURCHASE OF TEFLON® AF FLUOROPLASTIC RESIN. By accepting delivery of this product, purchaser agrees not to use Teflon® AF fluoropolymer resin in the manner set forth in one or more of the above-cited Chemours patents without authority from Chemours.

Purchaser may request a separate, written, nonexclusive license to permit practice under one or more of the above-cited Chemours patents and the payment of royalties separately, such request being directed to Sales and Marketing Manager, Teflon® AF amorphous fluoropolymers, Chemours Fluoroproducts, Chestnut Run Plaza, Bldg. 702, Wilmington, DE 19880-0702.