{
  "docket": "29604",
  "confidence": 0.95,
  "published_at": "2026-07-27T12:39:01Z",
  "summary": {
    "name": "summary",
    "value": "Stable cyclic (alkyl)(amino) carbenes as ligands for transition metal catalysts is marketed for licensing by University of California. It is documented in US patent US 7,312,331. The current assignee of record is University of California. Google Patents reports its legal status as \u201cActive\u201d (an automated indicator, not a legal determination). Its expected expiration is 2026-06-07.",
    "citation": {
      "source": "ipnex",
      "license": "ipnex_derived",
      "method": "templated_summary_from_publishable_facts",
      "confidence": 0.6,
      "url": null
    }
  },
  "patent_number": {
    "name": "patent_number",
    "value": "US7312331",
    "citation": {
      "source": "google_patents",
      "license": "google_patents_ccby4.0",
      "method": "gp_page_documents_number",
      "confidence": 0.95,
      "url": "https://patents.google.com/patent/US7312331/en"
    }
  },
  "patent_fields": [
    {
      "name": "title",
      "value": "Stable cyclic (alkyl)(amino) carbenes as ligands for transition metal catalysts",
      "citation": {
        "source": "google_patents",
        "license": "google_patents_ccby4.0",
        "method": "microdata_dc_title",
        "confidence": 0.9,
        "url": "https://patents.google.com/patent/US7312331/en"
      }
    },
    {
      "name": "current_owner",
      "value": "University of California",
      "citation": {
        "source": "google_patents",
        "license": "google_patents_ccby4.0",
        "method": "microdata_assignee_current",
        "confidence": 0.8,
        "url": "https://patents.google.com/patent/US7312331/en"
      }
    },
    {
      "name": "original_assignee",
      "value": "University of California San Diego UCSD",
      "citation": {
        "source": "google_patents",
        "license": "google_patents_ccby4.0",
        "method": "microdata_assignee_original",
        "confidence": 0.85,
        "url": "https://patents.google.com/patent/US7312331/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/US7312331/en"
      }
    },
    {
      "name": "filing_date",
      "value": "2006-06-07",
      "citation": {
        "source": "google_patents",
        "license": "google_patents_ccby4.0",
        "method": "microdata_filing_date",
        "confidence": 0.9,
        "url": "https://patents.google.com/patent/US7312331/en"
      }
    },
    {
      "name": "priority_date",
      "value": "2005-06-17",
      "citation": {
        "source": "google_patents",
        "license": "google_patents_ccby4.0",
        "method": "microdata_priority_date",
        "confidence": 0.9,
        "url": "https://patents.google.com/patent/US7312331/en"
      }
    },
    {
      "name": "publication_date",
      "value": "2007-12-25",
      "citation": {
        "source": "google_patents",
        "license": "google_patents_ccby4.0",
        "method": "microdata_publication_date",
        "confidence": 0.9,
        "url": "https://patents.google.com/patent/US7312331/en"
      }
    },
    {
      "name": "expiration_date",
      "value": "2026-06-07",
      "citation": {
        "source": "google_patents",
        "license": "google_patents_ccby4.0",
        "method": "microdata_anticipated_expiration",
        "confidence": 0.75,
        "url": "https://patents.google.com/patent/US7312331/en"
      }
    }
  ],
  "ownership": {
    "signal": "institution_owned",
    "flags_discrepancy": false,
    "institution": "University of California",
    "current_owner": "University of California",
    "original_assignee": "University of California San Diego UCSD"
  },
  "status": {
    "legal_status": "Active",
    "category": "active",
    "detail": "in_force",
    "in_force": true,
    "public_domain": false,
    "interpretation": null
  },
  "expiry": {
    "expiration_date": "2026-06-07",
    "basis": "anticipated",
    "as_of": "2026-07-30",
    "years_remaining": 0.0,
    "term": "expired",
    "interpretation": "This patent appears to have passed the end of its term, so the invention is likely in the public domain: free to practise, with no exclusive patent right left to license. Confirm its current standing before relying on it."
  },
  "licensability": {
    "value": 15,
    "band": "weak",
    "complete": true,
    "summary": "15/100 -- weak licensability.",
    "components": [
      {
        "name": "Ownership",
        "state": "ok",
        "detail": "The marketing institution is still the patent's owner of record."
      },
      {
        "name": "Legal status",
        "state": "ok",
        "detail": "In force (Active); an exclusive patent right exists."
      },
      {
        "name": "Remaining term",
        "state": "blocked",
        "detail": "The exclusive term has already ended."
      }
    ]
  },
  "link_out": {
    "institution": "University of California",
    "listing_url": "https://techtransfer.universityofcalifornia.edu/NCD/29604.html"
  }
}