Joseph Wegner,Erin Brown,Jeffery Atkins,Paul Zinn,Robert Walicki,Lanhua Hu
申请号：
US16576504
公开号：
US10751438B2
申请日:
2019.09.19
申请国别(地区):
US
年份:
2020
代理人:
摘要：
The present invention generally relates to fluorescent marking compositions and their use to determine whether a surface has been cleaned. More particularly, the marking compositions comprise fluorescent polymers.
