Qizheng Dou

This inventor holds 10 USPTO granted patents and 10 published patent applications, plus 1 CIPO patent and 10 EPO patents. Top assignees: Borealis Ag, Borealis Gmbh. Active years: 2017-2026.

USPTO Granted Patents = 10 (Patent Applications = 10)

% Patents Active = 100.0

CIPO Patents = 1 (Patent Applications = 2)

EPO Patents = 10 (Patent Applications = 33)

Average Co-Inventor Count = 3.5

ph-index = 3

Forward Citations = 23(Granted Patents)

Location History:

Linz, DE (2022)
Linz, AT (2017 - 2023)

Company Filing History:

Years Active: 2017-2026

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10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12668689 - Polyolefin pipe resin with very good sagging and slow crack growth resistance (2026-06-30),

2. 12258465 - Polyethylene composition for high pressure resistant pipes with improved homogeneity (2025-03-25),

3. 11760067 - Multilayer element comprising an interlayer comprising a copolymer of ethylene with a comonomer containing silane group(s) (2023-09-19),

4. 11504949 - Multilayer element (2022-11-22),

5. 11491767 - Multilayer element (2022-11-08),

6. 11254809 - Polymer composition and a process for production of the polymer composition (2022-02-22),

7. 10669410 - Process for producing multimodal polyethylene in-situ blends including ultra-high molecular weight fractions (2020-06-02),

8. 9920190 - Multimodal polyethylene composition with high pressure resistance (2018-03-20),

9. 9783661 - Blend of bimodal polyethylene with unimodal ultra high molecular weight polyethylene with improved mechanical properties (2017-10-10),

10. 9676877 - Disentangled high or ultrahigh molecular weight polyethylene prepared with Ziegler-Natta catalyst (2017-06-13),

Title: Qizheng Dou: Innovator in Polyethylene Technology

Introduction

Qizheng Dou is a prominent inventor based in Linz, Austria. He has made significant contributions to the field of polyethylene technology, holding a total of 10 patents. His work focuses on enhancing the properties and applications of polyethylene compositions, particularly for high-pressure resistant pipes.

Latest Patents

Among his latest innovations is a polyethylene composition designed for high-pressure resistant pipes. This invention features a base resin with a density ranging from 952.0 kg/m³ to 960.0 kg/m³, determined according to ISO 1183. The composition boasts a melt flow rate (MFR) of 1.0 to 7.5 g/10 min at 190° C., as per ISO 1133, and a complex viscosity at a frequency of 0.05 rad/s between 750 kPa·s and 1900 kPa·s, following ISO 6721-1 and ISO 6721-10. Additionally, it has a white spot rating of no more than 12.0, determined according to ISO 18553. Another notable patent involves a multilayer element that includes an interlayer made from a copolymer of ethylene with silane group(s). This invention outlines the production process and applications of the multilayer element in various articles.

Career Highlights

Qizheng Dou has worked with Borealis AG and Borealis GmbH, where he has applied his expertise in polymer science to develop innovative solutions. His career is marked by a commitment to advancing polyethylene technology and improving material performance.

Collaborations

Throughout his career, Qizheng has collaborated with notable colleagues, including Yi Liu and Alexandra Romina Albunia. These partnerships have contributed to the successful development of his patented technologies.

Conclusion

Qizheng Dou's contributions to polyethylene technology have established him as a key figure in the field. His innovative patents and collaborations reflect his dedication to enhancing material properties and applications.