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Qnity ElectronicsPatent grant

DuPont Electronics was granted a patent for ultrathin, high-strength copper foil.

What happened

In August 2026 DuPont Electronics patented lightweight copper foil for use in electronic components and other products requiring thin, durable conductive materials.

Source

Abstract

The present invention discloses an ultrathin copper foil without a carrier, that has an area weight of about 45 g/m 2 or less; a nominal thickness of about 5.0 μm or less; a tensile strength of about 40 Kgf/mm 2 or more; and a loop stiffness of 2 mN or more. Also disclosed are methods for manufacturing the present ultrathin copper foils, surface-treated ultrathin copper foils and articles made therefrom.

patents.google.com/patent/US12716144Read the full source

Extracted by Autobound

From the Signal API record
Signal
Patent grant

What this signalsA new patent often shows where a company is putting its R&D budget.

Grant date
Aug 25, 2026
Inventors
Shih-Ching Lin, Ya-Mei Lin
Patent number
US12716144
Assignee
DUPONT ELECTRONICS, INC.

The full record

From the Signal API record

People

  • Shih-Ching LinInventor
  • Ya-Mei LinInventor

Details

Primary CPC class
C25D 5/48
USPTO assignee
DUPONT ELECTRONICS, INC.
What the invention does
A carrier-free copper sheet only a few micrometers thick that stays strong and stiff enough to be handled and built into finished articles.

Topics and mentions

Tags

  • Intellectual Property
  • Research & Development
  • Engineering
  • Manufacturing Operations

Technologies named

  • copper foil
  • electroplating
  • electronic materials

Extraction

Detected
Sep 15, 2026
signal_type
patents-company
signal_subtype
patentGrant

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This page shows a preview. The full patents-company record in the Signal API and MCP can also have these 8 fields. Some fields are empty for some signals.

Company

  • linkedin_urlValue in the API
  • industriesValue in the API
  • employee_count_lowValue in the API
  • employee_count_highValue in the API
  • revenueValue in the API
  • descriptionValue in the API

Signal

  • signal_nameValue in the API
  • associationValue in the API
Show the full JSONThe record on this page and the API request

GET /v1/signals/d3bdddf7-2187-56f6-a8c7-4b4c58f5f10c returns this record as JSON. POST /v1/companies/enrich returns every signal for qnityelectronics.com.

{
  "signal_id": "d3bdddf7-2187-56f6-a8c7-4b4c58f5f10c",
  "signal_type": "patents-company",
  "signal_subtype": "patentGrant",
  "detected_at": "2026-09-15T19:29:49+00:00",
  "company": {
    "name": "Qnity Electronics",
    "domain": "qnityelectronics.com"
  },
  "data": {
    "cpc": [
      {
        "code": "C25D 5/48"
      },
      {
        "code": "C25D 3/38"
      },
      {
        "code": "C25D 5/04"
      },
      {
        "code": "H01M 4/661",
        "label": "Batteries / electrochemical direct conversion of chemical to electrical energy"
      }
    ],
    "tags": [
      "Intellectual Property",
      "Research & Development",
      "Engineering",
      "Manufacturing Operations"
    ],
    "detail": "In August 2026 DuPont Electronics patented lightweight copper foil for use in electronic components and other products requiring thin, durable conductive materials.",
    "summary": "DuPont Electronics was granted a patent for ultrathin, high-strength copper foil.",
    "event_at": "2026-08-25",
    "inventors": [
      {
        "name": "Shih-Ching Lin",
        "status": "unresolved",
        "is_primary": true
      },
      {
        "name": "Ya-Mei Lin",
        "status": "unresolved",
        "is_primary": false
      }
    ],
    "event_kind": "grant_date",
    "grant_date": "2026-08-25",
    "source_url": "https://patents.google.com/patent/US12716144",
    "cpc_primary": {
      "code": "C25D 5/48"
    },
    "patent_title": "Ultrathin copper foil, a method for manufacturing the same, and an article made therefrom",
    "patent_number": "US12716144",
    "uspto_assignee": "DUPONT ELECTRONICS, INC.",
    "patent_abstract": "The present invention discloses an ultrathin copper foil without a carrier, that has an area weight of about 45 g/m 2 or less; a nominal thickness of about 5.0 μm or less; a tensile strength of about 40 Kgf/mm 2 or more; and a loop stiffness of 2 mN or more. Also disclosed are methods for manufacturing the present ultrathin copper foils, surface-treated ultrathin copper foils and articles made therefrom.",
    "precision_class": "structural",
    "invention_explanation": "A carrier-free copper sheet only a few micrometers thick that stays strong and stiff enough to be handled and built into finished articles.",
    "technologies_mentioned": [
      "copper foil",
      "electroplating",
      "electronic materials"
    ]
  }
}

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