Sugar Land, TX, United States of America

John W Weston

This inventor holds 10 USPTO granted patents and 6 published patent applications and 7 EPO patents. Top assignees: Dow Global Technolgoies LLC, The Dow Chemical Company, Covestro LLC. Active years: 1989-2026.

USPTO Granted Patents = 10 (Patent Applications = 6)

% Patents Active = 70.0

EPO Patents = 7 (Patent Applications = 7)

Average Co-Inventor Count = 4.2

ph-index = 4

Forward Citations = 48(Granted Patents)

Location History:

Lake Jackson, TX (US) (1989 - 1991)
Sugar Land, TX (US) (2003 - 2017)
Freeport, TX (US) (2020)

Company Filing History:

7 out of 4,797

Dow Global Technolgoies LLC

patents

2 out of 7,680

The Dow Chemical Company

Dow Silicones Corporation

patents

where one patent can have more than one assignee

Years Active: 1989-2026

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10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12624146 - Polyurethane composition (2026-05-12),

2. 10767009 - Process for preparing polyether polyol using DMC catalyst and continuous addition of starter (2020-09-08),

3. 9708448 - Method for making poly(butylene oxide) polyols (2017-07-18),

4. 9637593 - Single column stripping and drying process (2017-05-02),

5. 9074044 - Method for continuously producing low equivalent weight polyols using double metal cyanide catalysts (2015-07-07),

6. 8912364 - Continuous loop flow process for polyether polyol production (2014-12-16),

7. 7378559 - Continuous process and system of producing polyether polyols (2008-05-27),

8. 6642423 - Polymerization of ethylene oxide using metal cyanide catalysts (2003-11-04),

9. 5037941 - Interfacial preparation of polycarbonate prepolymer with motionless mixer (1991-08-06),

10. 4847352 - Polycarbonate production with motionless mixer (1989-07-11),

Title: Innovations of John W Weston

Introduction

John W Weston is a notable inventor based in Sugar Land, TX (US), recognized for his contributions to the field of polyether polyols. With a total of seven patents to his name, Weston has made significant advancements in chemical processes that enhance product quality and efficiency.

Latest Patents

Weston's latest patents include a process for preparing polyether polyol using DMC catalyst and continuous addition of starter. This innovative method allows for the production of polyether polyols through a continuous addition of starter and alkylene oxide, resulting in a product with a narrow molecular weight distribution. Another significant patent is for a method of making poly(butylene oxide) polyols, where 1,2-butylene oxide is homopolymerized or randomly copolymerized in the presence of a double metal cyanide catalyst. This process has revealed that the polymers contain significant amounts of monofunctional impurities, which can be partially controlled through careful selection of polymerization conditions.

Career Highlights

Throughout his career, Weston has worked with prominent companies such as Dow Global Technologies LLC and Covestro LLC. His work in these organizations has contributed to the development of innovative chemical processes and products.

Collaborations

Weston has collaborated with notable professionals in his field, including Carlos M Villa and Jean-Paul Masy. These collaborations have further enriched his work and contributed to advancements in polyether polyol technology.

Conclusion

John W Weston is a distinguished inventor whose work has significantly impacted the field of polyether polyols. His innovative patents and collaborations highlight his expertise and dedication to advancing chemical processes.