Non-newtonian ballpoint pen ink comprising cellulose nanofibers
US-2025250449-A1 · Aug 7, 2025 · US
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Liu Wing Yam patents
Liu Wing Yam is listed as an inventor on 7 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Liu Wing Yam |
| Total patents | 7 |
| First publication | Apr 15, 2021 |
| Latest publication | Aug 7, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Non newtonian ballpoint pen ink comprising cellulose nanofibers
US-12297362-B2 · May 13, 2025 · US
Writing gel ink
US-11891530-B2 · Feb 6, 2024 · US
Writing gel ink
US-2023265312-A1 · Aug 24, 2023 · US
Writing gel ink
US-2023159787-A1 · May 25, 2023 · US
Non newtonian ballpoint pen ink comprising cellulose nanofibers
US-2022098423-A1 · Mar 31, 2022 · US
Writing gel ink
US-2021108099-A1 · Apr 15, 2021 · US
Recent patents
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| SOCIéTé BIC | 7 |
Top CPC classifications
Most common classification codes across this inventor's patents.