Who owns the patented technology that the company’s employees developed for the company during their employment?

Property owned by the company.

Article 6 of the "Patent Law":

Inventions and creations that are completed while performing the tasks of the unit or mainly by utilizing the material and technical conditions of the unit are service inventions. The right to apply for a patent for a service invention-creation belongs to the unit; after the application is approved, the unit becomes the patentee.

For non-service inventions, the right to apply for a patent belongs to the inventor or designer; after the application is approved, the inventor or designer becomes the patentee.

For inventions and creations completed by utilizing the unit’s material and technical conditions, if the unit has a contract with the inventor or designer and stipulates the right to apply for a patent and the ownership of the patent right, such agreement shall prevail.

Extended information:

The difference between service inventions and non-service inventions is mainly reflected in the ownership of rights for inventions and creations.

For non-service inventions, only the inventor or designer of the invention can be a patent applicant. After the patent application is approved, the patentee can enjoy the possession, use and benefit of the invention and creation. , the exclusive right to dispose of, and the right of injunction to exclude any other person from dominating the patent.

In service inventions and creations, although the natural person is the subject of completing the invention and creation, the right to apply for a patent for the invention and creation belongs to the unit, and the natural person as the inventor has no right to complete the invention and creation. There is no right to control or prohibit the use of others.

Article 16 of the "Patent Law": The unit that is granted the patent right shall reward the inventor or designer of the service invention-creation. After the invention-creation patent is implemented, it shall be based on the scope of its promotion and application and the obtained economic benefits and reasonable remuneration to the inventor or designer.

Baidu Encyclopedia: Patent Law

Baidu Encyclopedia: Service Invention