{
  "docket": "improved_heat_transfer_fluid_for_nuclear_reactors",
  "confidence": 0.95,
  "published_at": "2026-07-27T12:39:01Z",
  "summary": {
    "name": "summary",
    "value": "Nuclear reactor having efficient and highly stable thermal transfer fluid is marketed for licensing by University of Florida. It is documented in US patent US 8,731,133. The current assignee of record is University of Florida Research Foundation Inc. Google Patents reports its legal status as \u201cExpired - Fee Related\u201d (an automated indicator, not a legal determination). Its expected expiration is 2031-07-30.",
    "citation": {
      "source": "ipnex",
      "license": "ipnex_derived",
      "method": "templated_summary_from_publishable_facts",
      "confidence": 0.6,
      "url": null
    }
  },
  "patent_number": {
    "name": "patent_number",
    "value": "US8731133",
    "citation": {
      "source": "google_patents",
      "license": "google_patents_ccby4.0",
      "method": "gp_page_documents_number",
      "confidence": 0.95,
      "url": "https://patents.google.com/patent/US8731133/en"
    }
  },
  "patent_fields": [
    {
      "name": "title",
      "value": "Nuclear reactor having efficient and highly stable thermal transfer fluid",
      "citation": {
        "source": "google_patents",
        "license": "google_patents_ccby4.0",
        "method": "microdata_dc_title",
        "confidence": 0.9,
        "url": "https://patents.google.com/patent/US8731133/en"
      }
    },
    {
      "name": "current_owner",
      "value": "University of Florida Research Foundation Inc",
      "citation": {
        "source": "google_patents",
        "license": "google_patents_ccby4.0",
        "method": "microdata_assignee_current",
        "confidence": 0.8,
        "url": "https://patents.google.com/patent/US8731133/en"
      }
    },
    {
      "name": "original_assignee",
      "value": "University of Florida Research Foundation Inc",
      "citation": {
        "source": "google_patents",
        "license": "google_patents_ccby4.0",
        "method": "microdata_assignee_original",
        "confidence": 0.85,
        "url": "https://patents.google.com/patent/US8731133/en"
      }
    },
    {
      "name": "legal_status",
      "value": "Expired - Fee Related",
      "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/US8731133/en"
      }
    },
    {
      "name": "filing_date",
      "value": "2007-02-22",
      "citation": {
        "source": "google_patents",
        "license": "google_patents_ccby4.0",
        "method": "microdata_filing_date",
        "confidence": 0.9,
        "url": "https://patents.google.com/patent/US8731133/en"
      }
    },
    {
      "name": "priority_date",
      "value": "2006-02-22",
      "citation": {
        "source": "google_patents",
        "license": "google_patents_ccby4.0",
        "method": "microdata_priority_date",
        "confidence": 0.9,
        "url": "https://patents.google.com/patent/US8731133/en"
      }
    },
    {
      "name": "publication_date",
      "value": "2014-05-20",
      "citation": {
        "source": "google_patents",
        "license": "google_patents_ccby4.0",
        "method": "microdata_publication_date",
        "confidence": 0.9,
        "url": "https://patents.google.com/patent/US8731133/en"
      }
    },
    {
      "name": "expiration_date",
      "value": "2031-07-30",
      "citation": {
        "source": "google_patents",
        "license": "google_patents_ccby4.0",
        "method": "microdata_adjusted_expiration",
        "confidence": 0.75,
        "url": "https://patents.google.com/patent/US8731133/en"
      }
    }
  ],
  "ownership": {
    "signal": "institution_owned",
    "flags_discrepancy": false,
    "institution": "University of Florida",
    "current_owner": "University of Florida Research Foundation Inc",
    "original_assignee": "University of Florida Research Foundation Inc"
  },
  "status": {
    "legal_status": "Expired - Fee Related",
    "category": "lapsed",
    "detail": "lapsed_fee",
    "in_force": false,
    "public_domain": false,
    "interpretation": "This patent appears to have lapsed for an unpaid maintenance fee rather than by reaching the end of its term; such a lapse can sometimes be revived, so confirm its current standing before relying on it."
  },
  "expiry": {
    "expiration_date": "2031-07-30",
    "basis": "adjusted",
    "as_of": "2026-07-30",
    "years_remaining": 5.0,
    "term": "active_term",
    "interpretation": null
  },
  "licensability": {
    "value": 22,
    "band": "weak",
    "complete": true,
    "summary": "22/100 -- weak licensability.",
    "components": [
      {
        "name": "Ownership",
        "state": "ok",
        "detail": "The marketing institution is still the patent's owner of record."
      },
      {
        "name": "Legal status",
        "state": "caution",
        "detail": "Not currently in force (Expired - Fee Related); it may be revivable, but the right is not live today."
      },
      {
        "name": "Remaining term",
        "state": "caution",
        "detail": "About 5 years of exclusive term remain (to 2031-07-30)."
      }
    ]
  },
  "link_out": {
    "institution": "University of Florida",
    "listing_url": "https://ufinnovate.technologypublisher.com/tech/improved_heat_transfer_fluid_for_nuclear_reactors"
  }
}