Chengzhi Li

City:

Shandong

Country:

China

Published Applications:

Last publication date:

2021-02-04

Top Assignees for applications by Chengzhi Li

The entities that hold a legal rights for patent applications filed by inventor Li Chengzhi:

KINGENTA NORSTERRA CHEMICAL CO., LTD. 3 Guizhou, China
Kingenta Ecological Engineering Group Co., Ltd. 2 Shandong, China
YUNNAN ZHONGZHENG CHEMICAL INDUSTRY CO., LTD. 1 Kunming, Yunnan, China
YUNNAN ZHONGZHENG CHEMICAL INDUSTRY CO., LTD. 1 Yunnan, China
KINGENTA ECOLOGICAL ENGINEERING GROUP CO., LTD. 1 Linyi, Shandong, China

Recent patent applications by Li Chengzhi

Chengzhi Li from Shandong, CN has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2021-02-04

US20210032173A1

Chemistry; metallurgy

Polyphosphoric acid calcium magnesium fertilizer, polyphosphoric acid calcium magnesium fertilizer prepared by using phosphoric acid and phosphorus tailings as raw material and preparation method therefor

#2 | 2018-09-27

US20180273384A1

Chemistry; metallurgy

Method for producing wet-process phosphoric acid and by-producing alpha-hemihydrate gypsum and high-purity and high-whiteness alpha-hemihydrate gypsum

#3 | 2018-09-13

US20180257938A1

Chemistry; metallurgy

Method for producing phosphoric acid and by-producing alpha-hemihydrate gypsum by wet-process

InventorID:

2291663 ⎘