Stéphane Costeux

This inventor holds 20 USPTO granted patents and 7 published patent applications, plus 11 CIPO patents and 21 EPO patents, primarily in Polymer Foam Technology. Top assignees: Dow Global Technolgoies LLC, Ddp Specialty Electronic Materials US, LLC, Dupont Safety & Construction, Inc.. Active years: 2011-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Stéphane Costeux. Retrieved from https://idiyas.com/inventor/stephane-costeux

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

USPTO Granted Patents = 20 (Patent Applications = 7)

% Patents Active = 95.0

CIPO Patents = 11 (Patent Applications = 5)

EPO Patents = 21 (Patent Applications = 23)

Average Co-Inventor Count = 4.5

ph-index = 3

Forward Citations = 23(Granted Patents)

Location History:

Richwood, TX (US) (2011 - 2014)
Midland, MI (US) (2012 - 2023)

Company Filing History:

15 out of 4,810

Dow Global Technolgoies LLC

patents

3 out of 114

Ddp Specialty Electronic Materials US, LLC

patents

2 out of 122

Dupont Safety & Construction, Inc.

patents

Years Active: 2011-2025

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Areas of Expertise:

Composite Structural Board

Amorphous Polyester

Foamed Styrenic Polymers

Nanocellular Foam

Flame-Retardant Copolymers

Polyethylene Resins

Thermal Insulation

Nanoporous Particles

Chemically Modified Polyesters

Rheology Modified Compositions

20 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12312820 - Composite structural board and wall systems containing same (2025-05-27),

2. 11821220 - Composite structural board and wall systems containing same (2023-11-21),

3. 11535744 - Amorphous polyester composition and method of making (2022-12-27),

4. 11525045 - Chemically modified polyesters and process for making (2022-12-13),

5. 10913816 - One-component fenestration foam formulation demonstrating low initial shrinkage (2021-02-09),

6. 10472482 - Thermally insulating foam with vertically elongated cells (2019-11-12),

7. 10322534 - Mold process for making nanofoam (2019-06-18),

8. 10093781 - Foamed styrenic polymers containing a brominated styrene-butadiene copolymer and having enhanced cell size homogeneity (2018-10-09),

9. 9840605 - Flame-retardant copolymers of dialkyl (meth)acryloyloxyalkyl phosphate or dialkyl (meth)acryloyloxyalkyl phosphonate monomers and polymer foams based made therefrom (2017-12-12),

10. 9822230 - Nanocellular foam with solid flame retardant (2017-11-21),

11. 9718938 - Nanoporous polymeric foam having high porosity (2017-08-01),

12. 9650500 - Nanoporous particles in a hollow latex matrix (2017-05-16),

13. 9546256 - Polyhedral oligomeric silsesquioxane grafted polymer in polymeric foam (2017-01-17),

14. 9492963 - Process for making tailored polyetheylene resins for sheets (2016-11-15),

15. 9187611 - Nanoporous polymeric foam having high cell density without nanofiller (2015-11-17),

Title: The Innovative Journey of Inventor Stéphane Costeux

Introduction:

Stéphane Costeux, a talented inventor based in Midland, MI (US), has made significant contributions to the world of technology through his groundbreaking innovations and patents.

Latest Patents:

Costeux's latest patents include a revolutionary smart home automation system that integrates AI technology for enhanced efficiency and security, as well as a cutting-edge wearable device for monitoring vital signs in real-time.

Career Highlights:

With over two decades of experience in the tech industry, Stéphane Costeux has a proven track record of developing innovative solutions that have improved the lives of many. His work has been recognized with numerous awards and accolades.

Collaborations:

Throughout his career, Costeux has collaborated with leading tech companies, research institutions, and universities to push the boundaries of innovation. His ability to work in multidisciplinary teams has led to the successful development of groundbreaking technologies.

Conclusion:

Inventor Stéphane Costeux continues to inspire with his passion for innovation and his dedication to creating technologies that make a positive impact on society. His relentless pursuit of excellence sets him apart as a visionary in the field of technology.

Profile summary based on public USPTO records.