1. Four inheritance relationships: Wang Changsheng’s property is inherited equally by his third son and Liu Fang, and Liu Fang’s property is inherited by his third son. Wang Yong's property was inherited by his wife Zhang Xiu and son Wang Tao, and Wang Gang's property was inherited by his daughter Wang Xiaoling.
Since the 12 houses and 200,000 yuan left by Wang Changsheng belong to the couple's exclusive property, Wang Changsheng has no right to dispose of that part of the property belonging to Liu Fang, so the will is invalid. The inheritance results are: Zhang Xiu inherited 2 rooms, worth about 53,600 yuan; Wang Tao inherited 2 rooms, worth about 53,600 yuan; Wang Xiaoling inherited 4 rooms, worth about 96,700 yuan; Wang Qiang inherited 4 rooms, worth about 66,700 yuan RMB.
2. Li’s personal inheritance of RMB 1 million and pension of RMB 500,000 shall be equally divided between Zhang, Li’s parents, and the unborn child. Each person received 375,000 yuan.
3. The patent should be granted to Factory B.