"Lu Zhenghao" Meijiawu Longjing Tea is trademarked after a person's name

There are relatively few trademarks using personal names. Zhang Yiyuan and Wu Yutai are just trade names, not The name of the person

"Dalongqiu" Maofeng refers to a scenic spot in Yandang Mountain. It should be regarded as a place name.

There is a "Colorful Yunnan" who makes Pu'er tea. It’s considered a place name.

There are also some government-registered trademarks, such as: Rizhao Green Tea and Kaihua Longding also have place names.

There are many other teas named after place names, but most of them are just tea. A name does not count as a trademark.