Junqiang Liu

This inventor holds 14 USPTO granted patents and 2 published patent applications, plus 5 CIPO patents and 6 EPO patents. Top assignees: Dow Global Technolgoies LLC, Ddp Specialty Electronic Materials US, LLC. Active years: 2015-2026.

USPTO Granted Patents = 14 (Patent Applications = 2)

% Patents Active = 92.9

CIPO Patents = 5 (Patent Applications = 8)

EPO Patents = 6 (Patent Applications = 16)

Average Co-Inventor Count = 3.5

ph-index = 2

Forward Citations = 10(Granted Patents)

Location History:

Midland, MI (US) (2015 - 2022)
Manvel, TX (US) (2021 - 2024)
Freeport, TX (US) (2024)

Company Filing History:

13 out of 4,792

Dow Global Technolgoies LLC

patents

1 out of 114

Ddp Specialty Electronic Materials US, LLC

patents

Years Active: 2015-2026

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14 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12576385 - Carbon molecular sieve adsorbent monoliths and methods for making the same (2026-03-17),

2. 12472482 - Method of producing carbon molecular sieve membranes (2025-11-18),

3. 12458931 - Methods for preparing microcapillary carbon molecular sieve membranes (2025-11-04),

4. 12036518 - Carbon molecular sieve membrane produced from a carbon forming polymer-polyvinylidene chloride copolymer blend (2024-07-16),

5. 11931697 - Separation of gases via carbonized vinylidene chloride copolymer gas separation membranes and processes therefor (2024-03-19),

6. 11229884 - Asymmetric polyvinylidine chloride membranes and carbon molecular sieve membranes made therefrom (2022-01-25),

7. 11202995 - Supported carbon molecular sieve membranes and method to form them (2021-12-21),

8. 11007489 - Separation of gases via carbonized vinylidene chloride copolymer gas separation membranes and processes therefor (2021-05-18),

9. 11007488 - Separation of gases via carbonized vinylidene chloride copolymer gas separation membranes and processes therefor (2021-05-18),

10. 10661219 - Separation of nitrogen from hydrocarbon gas using pyrolyzed sulfonated macroporous ion exchange resin (2020-05-26),

11. 10646849 - Carbon molecular sieve adsorbents prepared from activated carbon and useful for propylene-propane separation (2020-05-12),

12. 10239043 - Vinylidene chloride copolymer-based carbon molecular sieve adsorbent compositions and processes therefor (2019-03-26),

13. 9579627 - Carbon molecular sieve and pellet compositions useful for C2-C3 alkane/alkene separations (2017-02-28),

14. 9169367 - Radiation cured membranes derived from polymers that are co-reactive with azide crosslinking agent(s) (2015-10-27),

Title: **Inventor Spotlight: Junqiang Liu**

Introduction

Junqiang Liu, an accomplished inventor based in Midland, MI, has a notable portfolio with 11 patents to his name. His innovative work primarily focuses on enhancing gas separation technologies, contributing significantly to the fields of materials science and engineering.

Latest Patents

Among Liu's most recent inventions is a novel carbon molecular sieve membrane produced from a carbon-forming polymer and polyvinylidene chloride copolymer blend. This membrane is created through pyrolysis of a carefully designed precursor composition, which involves blending a polyimide with polyvinylidene chloride copolymer. The resultant asymmetrical hollow fiber membrane is not only effective in gas separation but also proficient in dehydrochlorinating processes.

Another significant patent involves a process for separating hydrogen from a gas mixture that includes larger gas molecules. This innovative method utilizes a carbonized polyvinylidene chloride copolymer membrane, optimized for high hydrogen permeance and selectivity. This work has the potential to greatly enhance efficiency in various industrial applications related to gas separation.

Career Highlights

Junqiang Liu has held pivotal roles in esteemed companies, including Dow Global Technologies LLC and DDP Specialty Electronic Materials US, LLC. His contributions to these organizations have been marked by innovative developments and the establishment of advanced engineering solutions in the materials domain.

Collaborations

Throughout his career, Liu has collaborated with notable colleagues, including Edward M. Calverley and Janet M. Goss. These partnerships have enabled him to leverage collective expertise in pursuit of groundbreaking inventions, further advancing the boundaries of science and technology.

Conclusion

Junqiang Liu's inventive spirit and dedication to research continue to make significant impacts in the fields of gas separation and materials science. With a robust patent portfolio and collaborative endeavors, Liu exemplifies the essence of innovation that drives progress in technology today. His work not only champions advancements in engineering but also opens new avenues for sustainable practices in industrial applications.