Article 8 of the Patent Law: Inventions and creations completed by cooperation between two or more units or individuals, or inventions and creations completed by one unit or individual upon acceptance of entrustment by other units or individuals, unless otherwise agreed upon, shall apply for a patent. The rights belong to the unit or individual who completed or co-completed the patent; after the application is approved, the unit or individual who applied is the patentee. Therefore, the applicants in the same patent application can be two different companies. Article 4 of the Patent Fee Mitigation Measures: If two or more individuals or individuals and an entity apply for a patent at the same time, they may request to delay the payment of 70% application fee, invention patent application examination fee and annual fee and 60% invention patent application fee. Maintenance and review fees. If two or more units apply for patents at the same time, the patent fees will not be reduced