{
  "meta": {
    "disclaimer": "Do not rely on openFDA to make decisions regarding medical care. While we make every effort to ensure that data is accurate, you should assume all results are unvalidated. We may limit or otherwise restrict your access to the API in line with our Terms of Service.",
    "terms": "https://open.fda.gov/terms/",
    "license": "https://open.fda.gov/license/",
    "last_updated": "2026-09-07",
    "results": {
      "skip": 0,
      "limit": 1,
      "total": 3
    }
  },
  "results": [
    {
      "proprietary_name": [],
      "establishment_type": [
        "Manufacture Medical Device for Another Party (Contract Manufacturer)"
      ],
      "registration": {
        "registration_number": "3012214605",
        "fei_number": "3012214605",
        "status_code": "1",
        "initial_importer_flag": "N",
        "reg_expiry_date_year": "2026",
        "name": "PROTEINTECH GROUP INC",
        "address_line_1": "5500 Pearl St",
        "address_line_2": "Suite 400",
        "city": "Rosemont",
        "state_code": "IL",
        "iso_country_code": "US",
        "zip_code": "60018",
        "postal_code": "",
        "us_agent": {},
        "owner_operator": {
          "firm_name": "Proteintech Group Inc",
          "owner_operator_number": "10083744",
          "official_correspondent": {
            "first_name": "Abdul",
            "middle_initial": "",
            "last_name": "Issa",
            "subaccount_company_name": "",
            "phone_number": "1-312-4558498-823"
          },
          "contact_address": {
            "address_1": "5500 Pearl St Suite 400",
            "address_2": "",
            "city": "Rosemont",
            "state_code": "IL",
            "state_province": "",
            "iso_country_code": "US",
            "postal_code": "60018"
          }
        }
      },
      "pma_number": "",
      "k_number": "",
      "products": [
        {
          "product_code": "MXZ",
          "created_date": "2021-12-17",
          "owner_operator_number": "10083744",
          "exempt": "",
          "openfda": {
            "device_name": "Immunohistochemistry Assay, Antibody, Progesterone Receptor",
            "medical_specialty_description": "Hematology",
            "regulation_number": "864.1860",
            "device_class": "2"
          }
        }
      ]
    }
  ]
}