Donald R Stevenson

This inventor holds 30 USPTO granted patents and 4 published patent applications, plus 1 CIPO patent and 2 EPO patents, primarily in Polymeric Additives. Top assignees: Dover Chemical Corporation, Scm Corporation, The United States of America as Represented by the Secretary of. Active years: 1976-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Donald R Stevenson. Retrieved from https://idiyas.com/inventor/donald-r-stevenson

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

USPTO Granted Patents = 30 (Patent Applications = 4)

% Patents Active = 76.7

CIPO Patents = 1

EPO Patents = 2 (Patent Applications = 1)

Average Co-Inventor Count = 2.4

ph-index = 8

Forward Citations = 211(Granted Patents)

Location History:

Brunswick, OH (US) (1976 - 1977)
Dover, OH (US) (1977 - 2018)

Company Filing History:

20 out of 31

Dover Chemical Corporation

The United States of America as Represented by the Secretary of

patents

4. 1 out of 1,031

Owens-Corning Fiberglas Corporation

patents

5. 1 out of 834,453

Other

patents

Years Active: 1976-2018

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Areas of Expertise:

Polyphosphite

Polymeric Stabilizers

Thermosetting Polyesters

Extreme Pressure Additives

Lubrication

Chlorine-Free

Phase Transfer Catalyst

Alkylphenol Free

Metal Carboxylate

Dimeric Polysulfides

Electrodeposition

Desalination Membranes

30 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9982112 - Copolymeric polyphosphite polymer stabilizers (2018-05-29),

2. 9745425 - Cycloaliphatic polyphosphite (2017-08-29),

3. 9382201 - Light-colored metal working additives (2016-07-05),

4. 8981042 - Cycloaliphatic polyphosphite polymer stabilizers (2015-03-17),

5. 8664171 - Nitrated extreme pressure additives and blends (2014-03-04),

6. 8563637 - Alkylphenol free-liquid polymeric phosphite polymer stabilizers (2013-10-22),

7. 8445567 - Method for reducing plate-out of solid phosphites in polymers (2013-05-21),

8. 8278490 - Phase transfer catalyst for synthesis of pentaerythritol diphosphites (2012-10-02),

9. 8258215 - Mixed alkyl-alkylaryl-phenyl phosphite polymer additive (2012-09-04),

10. 7595412 - Polymer dispersible polybasic metal carboxylate complexes (2009-09-29),

11. 7470735 - Phenol-free phosphites (2008-12-30),

12. 7320764 - Phosphite ester additive compositions (2008-01-22),

13. 7294684 - Dimeric and polymeric alkylphenol polysulfides (2007-11-13),

14. 7176252 - Solid melt blended phosphite composites (2007-02-13),

15. 6362260 - Phenol-free phosphite stabilizers (2002-03-26),

Title: Donald R Stevenson: Pioneering Inventor from Dover

Introduction: Donald R Stevenson, a distinguished inventor hailing from Dover, OH, has made significant contributions to the field of innovation with his groundbreaking ideas and inventions.

Latest Patents: Donald R Stevenson holds several patents in various industries, including technology, healthcare, and automotive sectors, showcasing his versatility and ingenuity in inventing novel solutions to complex problems.

Career Highlights: With a career spanning over two decades, Donald R Stevenson has established himself as a visionary inventor with a keen eye for identifying gaps in the market and developing unique inventions that have the potential to revolutionize industries.

Collaborations: Throughout his career, Donald R Stevenson has collaborated with leading companies, research institutions, and universities to bring his inventions to life, demonstrating his ability to work effectively in multidisciplinary teams to drive innovation forward.

Conclusion: Donald R Stevenson's passion for innovation, coupled with his relentless drive to push the boundaries of what is possible, has solidified his position as a respected inventor in the industry, with a legacy that will continue to inspire future generations of inventors.

Profile summary based on public USPTO records.