Invalidity dossier
US 10618256
Added 9/23/2026, 6:02:23 PM
Active provider: DeepSeek · deepseek-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
US10618256 — Concise Overview
Title: Porcelain laminate and procedure for manufacturing it
Patent no.: US10618256B2
Inventor: Juan Lloveras Calvo
Current/Original Assignee: Individual
Application no.: US15/837,128 (filed 2017-12-11)
Publication: US20180099482A1 (2018-04-12); granted 2020-04-14
Priority date: 2009-11-11 (claimed from ES200902148A); also claims priority from ES200901564U and ES200901717U
Legal status as listed: Active; anticipated expiration 2030-02-24
Purpose / plain-language scope (per supplied text):
The patent concerns a layered porcelain laminate and its manufacturing process. Keyword data indicates the laminate combines porcelain with a metal layer (aluminium sheets are prominent, with mention of steel, including stainless steel) joined by adhesive—polyurethane figures strongly, alongside polyethylene and methacrylate. The laminate appears intended to be lightweight, strong and insulating: the classification data cites acoustic insulation, thermal insulation, heat stability, flexural strength/flexion stiffness, and wear resistance.
Layers and materials mentioned include aluminium and metal sheets; porcelain; stoneware; foam (high-density foam); plastic; elastomer, rubber, EPDM, polypropylene, polyethylene, ABS; and core materials such as plywood, fibre cement and wood. Processing terms suggest laminating, adhesive bonding, pressing, rolling, cleaning, scraping, blowing, drying, sealing, spraying, bending and trimming—i.e., preparing and bonding the porcelain and metal sheet with adhesive, then finishing the panel.
Source: https://patents.google.com/patent/US10618256/en
What this excerpt does not establish:
The excerpt contains no claim language, abstract text, or description body—only bibliographic data and keyword/classification statistics. Therefore the exact claimed scope, layer order, thicknesses, adhesive chemistry and process steps cannot be verified from the supplied text. It also does not establish legal validity, enforceability, or the accuracy of the listed assignee and legal status, which the source itself notes are assumptions.
Generated 10/1/2026, 9:43:03 PM
Cases on file (0)
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Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
Proceedings on file (0)
All PTAB activity →AIA trial proceedings (IPR / PGR / CBM) filed at the USPTO Patent Trial and Appeal Board against this patent. Sourced from the USPTO Open Data Portal and refreshed every six hours; each proceeding number deep-links to the PTAB E2E docket.
No PTAB proceedings on file. This patent has not been challenged via IPR, PGR, or CBM. The absence is itself a signal — well-asserted patents eventually attract IPRs. The LLM analysis below may surface filings the ODP feed hasn’t indexed yet.
PTAB challenges
AIA trial proceedings at the USPTO Patent Trial and Appeal Board — IPR, PGR, and CBM. Petitioners, judge panels, claim-level invalidation outcomes from Final Written Decisions, and Federal Circuit appeals. The single most important defensive datapoint after litigation history.
Assignment history
Inventors, original assignee, and the chain of ownership recorded with the USPTO — including the correspondent attorney who recorded each assignment, since shell-LLC chains often share one repeat-player attorney even when the entity names look unrelated. Surfaces NPE / patent-troll patterns: shell-entity transfers, known asserters in the chain, repeat correspondent fingerprints, pre-litigation assignments, and bankruptcy fire-sales.
Prior art
Earlier patents, publications, and products that may anticipate or render the claims unpatentable.
Obviousness
Combinations of prior art that suggest the claimed invention would have been obvious under 35 U.S.C. § 103.
Extensions
Patent term adjustments, term extensions, continuations, divisionals, family members, and expiration dates.
Derivative works
Defensive disclosure: derivative variations of each claim designed to render future incremental improvements obvious or non-novel.