![](https://www.vapebusiness.biz/wp-content/uploads/2022/04/synic.png)
UK’ Zanoprima accuses Chinese vaping firm Hangsen of patent infring...
Zanoprima Lifesciences, a UK-based company developing tobacco replacement products, has accused Chinese vaping firm Hangsen of violating its patent to the enzymatic process for making synthetic nicotine. Zanoprima has filed a patent infringement action at the US District...