Perform the task or main use of the unit.

An invention-creation made by carrying out the tasks of the unit or mainly using the material and technical conditions of the unit is a service invention-creation. From Article 6 of the Patent Law of People's Republic of China (PRC).

Content:

1. 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. Units may dispose of the patent application right and patent right of their service inventions and creations according to law, and promote the implementation and application of related inventions and creations.

2. The right to apply for a patent for a non-service invention-creation belongs to the inventor or designer; After the application is approved, the inventor or designer shall be the patentee.

3. Where an invention-creation is completed by using the material and technical conditions of the entity, the entity has a contract with the inventor or designer to stipulate the right to apply for a patent and the ownership of the patent right, such agreement shall prevail.

Edison invented the light bulb.

Supplement:

Four great inventions of China

Papermaking: During the Eastern Han Dynasty, Cai Lun was an official in Luoyang, the capital of Beijing. I often go to the suburbs of Luoyang to collect materials and create paper with bark, hemp head, rags and old fishing nets as raw materials. Papermaking was later spread from Luoyang, the capital, to other areas.

Compass: It was called Sina in ancient times. Its main component is a magnetic needle mounted on the shaft. Under the action of natural geomagnetic field, the magnetic needle can rotate freely and keep in the tangential direction of magnetic meridian. The south pole of the magnetic needle points to the geographical south pole (magnetic north pole), and the direction can be distinguished by this property.

Gunpowder: an explosive that causes violent combustion by sparks, flames, etc. According to the records in Fan Ran, China has been used for folk livelihood in the Spring and Autumn Period. Fan He said that "saltpeter leads to a long road".

Printing: woodblock printing was invented in the Tang Dynasty and was widely used in the middle and late Tang Dynasty. Song Renzong and Bi Sheng invented movable type printing, which marked the birth of movable type printing. He was the first inventor in the world, about 400 years before Johannes Gutenberg invented movable type printing, which marked the birth of movable type printing.