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For the Inventor, By the Inventor

Leverkusen, Germany

Gunther Weymans

This inventor holds 28 USPTO granted patents, primarily in Polycarbonate Production. Top assignees: Bayer Aktiengesellschaft, Other. Active years: 1990-1995.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Gunther Weymans. Retrieved from https://idiyas.com/inventor/gunther-weymans

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

Calculating rank
USPTO Granted Patents = 28

% Patents Active = 100.0

Average Co-Inventor Count = 4.7

ph-index = 12

Forward Citations = 548(Granted Patents)


Company Filing History:

goldMedal27 out of 12,269 
 
Bayer Aktiengesellschaft
 patents
silverMedal1 out of 834,659 
Other
 patents

Years Active: 1990-1995

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Areas of Expertise:
Polycarbonate
Multicomponent Mixtures
Heat Exchangers
Centrifuges
Aromatic Copolyether Sulfones
Ultrafine Suspensions
Thermoplastics
Dihydroxydiphenyl
Block Cocondensates
Enthalpy Flow
Optical Applications
Polymer Isolation
28 patents (USPTO):Explore Patents
1. 5412060 - Process for the production of polycarbonate of constant viscosity (1995-05-02),
2. 5368699 - Method of controlling the concentrations of a multicomponent mixture (1994-11-29),
3. 5363905 - Method of controlling heat exchangers using enthalpy flow as the (1994-11-15),
4. 5275758 - Production of ultrafine suspensions of bisphenol, sodium hydroxide and (1994-01-04),
5. 5260418 - Washing of polycarbonates with cascading train of centrifuges (1993-11-09),
6. 5258484 - Process for the production of polycarbonate (1993-11-02),
7. 5250658 - Isolation of polycarbonate with carbon dioxide (1993-10-05),
8. 5248763 - Isolation of poly(ester)carbonates from methylene chloride using carbon (1993-09-28),
9. 5244544 - Process for the separation of multicomponent systems containing (1993-09-14),
10. 5235026 - Continuous production of polycarbonates (1993-08-10),
11. 5229486 - Process for isolating polymers from their solvents using liquids (1993-07-20),
12. 5227458 - Polycarbonate from dihydroxydiphenyl cycloalkane (1993-07-13),
13. 5221731 - Process for isolating polycarbonates with CO.sub.2 under pressure (1993-06-22),
14. 5198525 - Aromatic copolyether sulfones (1993-03-30),
15. 5149761 - Aromatic ether imides (1992-09-22),

Title: Innovations of Gunther Weymans: A Journey Through Polycarbonate Production

Introduction

Gunther Weymans, an esteemed inventor based in Leverkusen, Germany, holds an impressive portfolio of 28 patents. His contributions to the field of chemical engineering, particularly in the production of polycarbonates, have advanced industry practices and contributed significantly to process technology.

Latest Patents

Gunther Weymans' latest patents showcase his innovative approach to polycarbonate manufacturing. One notable invention is a "Process for the production of polycarbonate of constant viscosity," which details a method using the two-phase interfacial technique. This process minimizes deviations between measured and estimated variables through a carefully selected observer or filter system. Utilizing an empirical Mark-Houwink relation, it ensures that product quality remains stable, allows for quick adjustments to changes in load, and accommodates disturbances not easily measurable by standard means. Another relevant patent is the "Method of controlling the concentrations of a multicomponent mixture," particularly beneficial in thermal separation technology. This technique employs a non-linear, pressure-compensated temperature as a control signal, allowing it to function effectively across a broad operational range.

Career Highlights

Gunther Weymans has collaborated with well-known companies, including Bayer Aktiengesellschaft, a leading organization in the chemical and pharmaceutical industries. His work consistently demonstrates a commitment to refining production processes and enhancing product quality through innovative engineering solutions.

Collaborations

Throughout his career, Weymans has worked alongside notable colleagues, including Dieter Freitag and Uwe Westeppe. These collaborations have likely fostered a creative environment, enabling groundbreaking advancements in technology and patent development.

Conclusion

Gunther Weymans' pioneering inventions in polycarbonate production and process control distinguish him as a prominent figure in the field of chemical engineering. With a robust patent portfolio and impactful collaborations, Weymans continues to shape innovation and drive progress in manufacturing technologies. His contributions will undoubtedly influence future advancements, solidifying his legacy as an exceptional inventor.

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]
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