Verbal Patent Ownership Agreement

Exhibit 99.8

Verbal Patent Ownership Agreement

This Verbal Patent Ownership Agreement memorializes a verbal agreement by and between Nanjing Forest University (“NF”) and Nanjing Changcheng Medical Equipment Co., Ltd (the “Company”), on or before December 2, 2020.

1. Right of Ownership. NF unequivocally confirms that the Company shall own absolutely all rights in their entirety of the following patent:

Application/ Registration Number

Name

Type

Owner

Jurisdiction

Date of Application (DD/MM/YYYY)

Date of Registration (DD/MM/YYYY)

Date of Patent Expiration (DD/MM/YYYY)

Status

202022881052.8

A device for reducing magnetron power fluctuations

Utility

Changcheng Nanjing

PRC

02/12/2020

24/08/2021

01/12/2030

Granted

2. Payment. NF acknowledges and agrees that no royalty payments will be made to NF for the Company’s use of such patent.