Which domestic water purifier technology enterprise has independent intellectual property rights?

It should be Li Sheng Company.

This is the information found, and I hope it will be useful to you-Li Sheng's management center and marketing headquarters are both in Shenzhen, and the world's largest ultrafiltration membrane production base is built in Hainan, with an annual production capacity of 3 million square meters of high-quality ultrafiltration membranes. With the completion of Suzhou plant covering an area of 88 mu with a registered capital of120,000 USD in 2007, Li Sheng has the world's largest research and development center for ultrafiltration products and a manufacturing base for membrane products and equipment.

Li Sheng has always adhered to the road of scientific and technological innovation, and has successively undertaken major scientific and technological research tasks such as the national key scientific and technological research project in 2000 and the guiding project of the Tenth Five-Year National Key Scientific and Technological Research Plan, and obtained many major scientific research achievements such as the research and development and application of PVC alloy capillary ultrafiltration membrane, and successively won the national key new product certificate, the first prize of Hainan Science and Technology Award, and the first prize of China Film Industry Association Science and Technology Award. Li Sheng has completely independent intellectual property rights in core technologies, and the ultrafiltration membrane manufactured with ultrafiltration membrane as the core and Li Sheng water purification ultrafiltration machine have 20 core patents. On June 6th, 2006, 165438+ 10/6, CCTV news broadcast focused on the advanced deeds of independent innovation of Chairman Li Sheng and Chairman Chen Lianggang.

My ID card is my contact information.