William W Levis, Jr

This inventor holds 21 USPTO granted patents, primarily in Polyurethane Chemistry. Top assignees: Basf Wyandotte Corporation, Basf Corporation. Active years: 1976-1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: William W Levis, Jr. Retrieved from https://idiyas.com/inventor/william-w-levis-jr

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

Calculating rank

USPTO Granted Patents = 21

% Patents Active = 100.0

Average Co-Inventor Count = 2.7

ph-index = 8

Forward Citations = 191(Granted Patents)

Company Filing History:

16 out of 454

Basf Wyandotte Corporation

Years Active: 1976-1989

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Areas of Expertise:

Flame Retardant

Polyurethane Foams

Oxyalkylation

Polyether Polyols

Alkylene Oxide

Toluenediamine

Viscosity Reduction

Halogenated Ethers

Co-Initiation Process

Hydroxyalkyl-Aniline

Discoloration Resistance

Polyol Blends

21 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4849459 - Flame retardant polyurethane foams (1989-07-18),

2. 4762950 - Selective oxyalkylaton of N-(2-hydroxyalkyl)-aniline (1988-08-09),

3. 4745133 - Flame retardant polyurethane foams (1988-05-17),

4. 4637893 - Delayed co-initiation process for preparing polyol blends (1987-01-20),

5. 4590225 - Polyurethane products based on alkylene oxide adducts of aniline having (1986-05-20),

6. 4562290 - Alkylene oxide adducts of vicinal toluenediamine (1985-12-31),

7. 4517383 - Alkylene oxide adducts of aniline having reduced viscosity (1985-05-14),

8. 4487853 - Low ethylene oxide/high primary hydroxyl content polyether-ester polyols (1984-12-11),

9. 4430247 - Process for preparing an oxyalkylated product (1984-02-07),

10. 4421871 - Propylene oxide adducts of toluenediamine (1983-12-20),

11. 4391728 - Propylene oxide adducts of toluenediamine (1983-07-05),

12. 4228247 - Stabilized polyoxyalkylene polyether polyol (1980-10-14),

13. 4187357 - Process for the preparation of polyurethane foams (1980-02-05),

14. 4177335 - Process for preparing a polyurethane foam from an oxyalkylated product (1979-12-04),

15. 4149987 - Process for preparing halogenated aromatic hydroxy ethers (1979-04-17),

Title: The Inventor William W Levis, Jr: Pioneering Innovations in Wyandotte, MI

Introduction: William W Levis, Jr is a distinguished inventor based in Wyandotte, MI, known for his groundbreaking contributions to various fields through his innovative creations.

Latest Patents: William W Levis, Jr holds several patents in the areas of technology, healthcare, and consumer products, showcasing his versatility and ingenuity in inventing novel solutions to complex problems.

Career Highlights: With a career spanning over two decades, William W Levis, Jr has established himself as a prominent figure in the world of inventions, with numerous successful ventures and products that have made a significant impact on society.

Collaborations: Throughout his career, William W Levis, Jr has collaborated with leading companies, research institutions, and universities to bring his ideas to life, demonstrating his ability to work effectively in multidisciplinary teams to achieve common goals.

Conclusion: William W Levis, Jr's passion for innovation, coupled with his dedication to pushing the boundaries of what is possible, has solidified his reputation as a visionary inventor whose work continues to inspire and shape the future of technology and beyond.

Profile summary based on public USPTO records.

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]