{
  "docket": "P09061US",
  "confidence": 0.95,
  "published_at": "2026-07-13T12:19:39Z",
  "summary": {
    "name": "summary",
    "value": "Density multiplication and improved lithography by directed block copolymer assembly is marketed for licensing by Wisconsin Alumni Research Foundation. It is documented in US patent US 9,183,870. The current assignee of record is Western Digital Technologies Inc. Google Patents reports its legal status as \u201cActive\u201d (an automated indicator, not a legal determination). Its expected expiration is 2031-03-21.",
    "citation": {
      "source": "ipnex",
      "license": "ipnex_derived",
      "method": "templated_summary_from_publishable_facts",
      "confidence": 0.6,
      "url": null
    }
  },
  "patent_number": {
    "name": "patent_number",
    "value": "US9183870",
    "citation": {
      "source": "google_patents",
      "license": "google_patents_ccby4.0",
      "method": "gp_page_documents_number",
      "confidence": 0.95,
      "url": "https://patents.google.com/patent/US9183870/en"
    }
  },
  "patent_fields": [
    {
      "name": "title",
      "value": "Density multiplication and improved lithography by directed block copolymer assembly",
      "citation": {
        "source": "google_patents",
        "license": "google_patents_ccby4.0",
        "method": "microdata_dc_title",
        "confidence": 0.9,
        "url": "https://patents.google.com/patent/US9183870/en"
      }
    },
    {
      "name": "current_owner",
      "value": "Western Digital Technologies Inc",
      "citation": {
        "source": "google_patents",
        "license": "google_patents_ccby4.0",
        "method": "microdata_assignee_current",
        "confidence": 0.8,
        "url": "https://patents.google.com/patent/US9183870/en"
      }
    },
    {
      "name": "original_assignee",
      "value": "HGST Netherlands BV",
      "citation": {
        "source": "google_patents",
        "license": "google_patents_ccby4.0",
        "method": "microdata_assignee_original",
        "confidence": 0.85,
        "url": "https://patents.google.com/patent/US9183870/en"
      }
    },
    {
      "name": "legal_status",
      "value": "Active",
      "citation": {
        "source": "google_patents",
        "license": "google_patents_ccby4.0",
        "method": "microdata_legal_status_gp_disclaims_accuracy",
        "confidence": 0.7,
        "url": "https://patents.google.com/patent/US9183870/en"
      }
    },
    {
      "name": "filing_date",
      "value": "2008-12-05",
      "citation": {
        "source": "google_patents",
        "license": "google_patents_ccby4.0",
        "method": "microdata_filing_date",
        "confidence": 0.9,
        "url": "https://patents.google.com/patent/US9183870/en"
      }
    },
    {
      "name": "priority_date",
      "value": "2007-12-07",
      "citation": {
        "source": "google_patents",
        "license": "google_patents_ccby4.0",
        "method": "microdata_priority_date",
        "confidence": 0.9,
        "url": "https://patents.google.com/patent/US9183870/en"
      }
    },
    {
      "name": "publication_date",
      "value": "2015-11-10",
      "citation": {
        "source": "google_patents",
        "license": "google_patents_ccby4.0",
        "method": "microdata_publication_date",
        "confidence": 0.9,
        "url": "https://patents.google.com/patent/US9183870/en"
      }
    },
    {
      "name": "expiration_date",
      "value": "2031-03-21",
      "citation": {
        "source": "google_patents",
        "license": "google_patents_ccby4.0",
        "method": "microdata_adjusted_expiration",
        "confidence": 0.75,
        "url": "https://patents.google.com/patent/US9183870/en"
      }
    }
  ],
  "ownership": {
    "signal": "third_party_owned",
    "flags_discrepancy": true,
    "institution": "Wisconsin Alumni Research Foundation",
    "current_owner": "Western Digital Technologies Inc",
    "original_assignee": "HGST Netherlands BV"
  },
  "status": {
    "legal_status": "Active",
    "category": "active",
    "detail": "in_force",
    "in_force": true,
    "public_domain": false,
    "interpretation": null
  },
  "expiry": {
    "expiration_date": "2031-03-21",
    "basis": "adjusted",
    "as_of": "2026-07-19",
    "years_remaining": 4.7,
    "term": "active_term",
    "interpretation": null
  },
  "licensability": {
    "value": 9,
    "band": "weak",
    "complete": true,
    "summary": "9/100 -- weak licensability.",
    "components": [
      {
        "name": "Ownership",
        "state": "blocked",
        "detail": "The patent is now owned by a third party (Western Digital Technologies Inc), not the marketing institution, so it may not be theirs to license."
      },
      {
        "name": "Legal status",
        "state": "ok",
        "detail": "In force (Active); an exclusive patent right exists."
      },
      {
        "name": "Remaining term",
        "state": "caution",
        "detail": "About 5 years of exclusive term remain (to 2031-03-21)."
      }
    ]
  },
  "link_out": {
    "institution": "Wisconsin Alumni Research Foundation",
    "listing_url": "https://www.warf.org/technologies/summary/P09061US/"
  }
}