Is the compressor of Sandian Bell a Volkswagen patent?

The subject wants to ask, "Is the compressor of Sandian Bell a Volkswagen patent?" ? No, Sandian Bell Automobile Compressor is a product independently developed by Shanghai Sandian Bell Automobile Air Conditioning Co., Ltd., and Volkswagen did not apply for the patent of Sandian Bell Automobile Compressor or own the patent of this technology, which does not belong to the patent scope of Volkswagen. Shanghai Sandian Bell Automobile Air Conditioning Co., Ltd. is a joint venture of Huayu Automobile System Co., Ltd., Japan Sandian Co., Ltd., German Bell Co., Ltd. and Shanghai Longhua Industrial Co., Ltd., and it is the largest professional designated enterprise in China to produce automobile air conditioning systems and automobile air conditioning compressors.