Invalidity dossier
US 7419058
System for gathering discarded post-consumer carpet, for recycling
Current assignee: ENVIRONX Inc
Added 9/23/2026, 4:26:32 PM
Active provider: DeepSeek · deepseek-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview — US 7,419,058 B2
Title: System for gathering discarded post-consumer carpet, for recycling.
Assignee/Inventor: Original assignee EnvironX (later recorded as ENVIRONX, INC.); inventor Scott Wening. Application US 11/245,886, filed 2005-10-07; published as US20060070930A1 on 2006-04-06; granted 2008-09-02. Priority date listed as 2002-04-04. Adjusted expiration 2024-03-17; status listed as Expired – Fee Related.
Purpose (per the supplied text): To collect and gather used, discarded post-consumer carpet (PCC) so that its polymers — mainly nylon fibers from tufting and polypropylene from the backing — can be recycled rather than landfilled. The text notes an estimated 5 billion pounds of PCC buried annually in U.S. landfills, and that most carpet recyclers refuse to handle PCC. Stated objects include: a coordinated system letting numerous independent carpet-installer contractors deliver PCC to a recycling facility economically and profitably; interacting machines and devices usable by dozens or hundreds of contractors without extensive training or cumbersome paperwork; a system meshing with existing installer practices for quick adoption; and a relatively tamper-resistant accounting and payment system.
Plain-language scope: The excerpt frames the invention as a coordinated collection-and-recycling system built around carpet installers as collectors, plus sorting/identification of carpet material types (nylon-6, nylon-6,6, PET, polypropylene, mixed weaves) to keep chemically incompatible nylons separate. It describes the practical context — carpet cut into strips up to about 6 feet wide, rolled into tied "cigar rolls" of roughly 50–80 pounds a single worker can carry. Classifications include G06Q30/06 (buying/selling), B07C5/34 (sorting by code) and B29B17/02 (recovering/separating plastics), among others.
Not established by this excerpt: The full claim set and claim language; the complete written description and omitted passages; figures; the specific mechanics of the accounting/payment system; and any details of the interactive machines described only in general terms. The excerpt only names prior-art references (U.S. Pat. Nos. 6,341,699 and 5,952,660; EP0372906) without assessment.
Generated 10/1/2026, 9:50:52 PM
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Litigation summary
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PTAB challenges
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Assignment history
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Prior art
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Obviousness
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Extensions
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Derivative works
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