Carrier was granted a patent for improved chiller motor control.

{
  "signal_id": "dc36da8e-2235-5fc1-8165-4e19e6b7b9de",
  "signal_type": "patents-company",
  "signal_subtype": "patentGrant",
  "detected_at": "2026-09-30T17:06:52+00:00",
  "company": {
    "name": "Carrier",
    "domain": "carrier.com"
  },
  "data": {
    "cpc": [
      {
        "code": "F25B 49/025"
      },
      {
        "code": "F25B 2600/024"
      }
    ],
    "tags": [
      "Intellectual Property",
      "Research & Development",
      "Engineering",
      "Energy / Power"
    ],
    "detail": "In September 2026 Carrier patented variable-frequency motor control for chiller units used in air-conditioning systems and building climate management.",
    "summary": "Carrier was granted a patent for improved chiller motor control.",
    "event_at": "2026-09-29",
    "inventors": [
      {
        "name": "Da Jin",
        "status": "unresolved",
        "is_primary": true
      },
      {
        "name": "Zhizhong Xiang",
        "status": "unresolved",
        "is_primary": false
      },
      {
        "name": "Lei Jing",
        "status": "resolved",
        "is_primary": false,
        "linkedin_url": "https://www.linkedin.com/in/lei-jing-62517940"
      },
      {
        "name": "Yongliang Hu",
        "status": "unresolved",
        "is_primary": false
      }
    ],
    "event_kind": "grant_date",
    "grant_date": "2026-09-29",
    "source_url": "https://patents.google.com/patent/US12747899",
    "cpc_primary": {
      "code": "F25B 49/025"
    },
    "patent_title": "Motor drive system and control method for chiller unit",
    "patent_number": "US12747899",
    "uspto_assignee": "CARRIER CORPORATION",
    "patent_abstract": "The present application relates to air conditioning technology and motor control technology, and in particular to a motor drive system for a chiller unit, a chiller unit comprising the motor drive system, a control method for a chiller unit, and a computer-readable storage medium on which is stored a computer program for implementing the method. A motor drive system for a chiller unit according to an aspect of the present application comprising: a variable frequency drive unit configured to drive a first motor; a power frequency drive unit configured to drive a second motor; and a control unit configured to adapt a load demand of the chiller unit by controlling output power of the variable frequency drive unit and the power frequency drive unit.",
    "precision_class": "structural",
    "invention_explanation": "A control system that varies the motor’s operating speed to drive a chiller more effectively as cooling demand changes.",
    "technologies_mentioned": [
      "chiller systems",
      "variable-frequency drives",
      "motor control",
      "air conditioning"
    ]
  }
}

curl https://signals.autobound.ai/v1/signals/dc36da8e-2235-5fc1-8165-4e19e6b7b9de \
  -H "X-API-KEY: $AUTOBOUND_API_KEY"

curl -X POST https://signals.autobound.ai/v1/companies/enrich \
  -H "X-API-KEY: $AUTOBOUND_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"domain":"carrier.com","limit":20}'