High molecular weight gpam with anionic polysaccharide promoter
US-2025215649-A1 · Jul 3, 2025 · US
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Chen Junhua patents
Chen Junhua is listed as an inventor on 19 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Chen Junhua |
| Total patents | 19 |
| First publication | Jun 25, 2015 |
| Latest publication | Jul 3, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
High molecular weight gpam with anionic polymeric promoter
US-2025137200-A1 · May 1, 2025 · US
Softener concentrate, softener emulsion, method for producing softener emulsion and its use
US-2024318383-A1 · Sep 26, 2024 · US
Paper strength improvement using metal chelates and synthetic cationic polymers
US-11834792-B2 · Dec 5, 2023 · US
Method for manufacture of paper or board and paper or board obtained by the method
US-11535985-B2 · Dec 27, 2022 · US
Paper strength improving composition, manufacture thereof and use in paper making
US-11453979-B2 · Sep 27, 2022 · US
Paper strength improvement using metal chelates and synthetic cationic polymers
US-2022195672-A1 · Jun 23, 2022 · US
Surface treatment composition, its use and a method for producing paper, board or the like
US-11208766-B2 · Dec 28, 2021 · US
Paper strength improving composition, manufacture thereof and use in paper making
US-2021189659-A1 · Jun 24, 2021 · US
Method for manufacture of paper or board and paper or board obtained by the method
US-2021002827-A1 · Jan 7, 2021 · US
Recent patents
Latest publications not already listed above.
Surface treatment composition, its use and a method for producing paper, board or the like
US-2020232165-A1 · Jul 23, 2020 · US
Method for producing paper
US-10458068-B2 · Oct 29, 2019 · US
Method for producing paper
US-10435843-B2 · Oct 8, 2019 · US
Method for producing paper
US-2018051416-A1 · Feb 22, 2018 · US
Method for producing paper
US-2017314204-A1 · Nov 2, 2017 · US
Compositions and methods of making paper products
US-9506195-B2 · Nov 29, 2016 · US
Compositions and methods of making paper products
US-2016201267-A1 · Jul 14, 2016 · US
Compositions and methods of making paper products
US-9328462-B2 · May 3, 2016 · US
Compositions and methods of making paper products
US-2015176206-A1 · Jun 25, 2015 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Kemira Oyj | 20 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| D21H17/375 | 18 |
| D21H21/20 | 14 |
| D21H21/18 | 14 |
| D21H21/10 | 8 |
| D21H17/55 | 8 |