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For the Inventor, By the Inventor

Arvada, CO, United States of America

Helena L Chum

This inventor holds 17 USPTO granted patents, primarily in Polymer Waste Conversion. Top assignees: Midwest Research Institute, The United States of America as Represented by the United States, Midwest Research Institute Ventures, Inc.. Active years: 1984-1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Helena L Chum. Retrieved from https://idiyas.com/inventor/helena-l-chum

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

Calculating rank
USPTO Granted Patents = 17

% Patents Active = 100.0

Average Co-Inventor Count = 2.3

ph-index = 13

Forward Citations = 600(Granted Patents)


Company Filing History:

goldMedal12 out of 278 
 
Midwest Research Institute
 patents
silverMedal2 out of 3,975 
 
The United States of America as Represented by the United States
 patents
bronzeMedal1 out of 1 
 
Midwest Research Institute Ventures, Inc.
 patent
4. 1 out of 1 
 
Mri Ventures, Inc.
 patent
5. 1 out of 834,708 
Other
 patents

Years Active: 1984-1998

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Areas of Expertise:
Pyrolysis
Hydrolysis
Polymer Waste
Biomass Conversion
Phenolic Compounds
Catalytic Processes
Thermal Treatment
Resole Resin
Supercritical Separation
Fast-Pyrolysis Oils
Cation Exchange
Carboxylic Acids
17 patents (USPTO):Explore Patents
1. 5821553 - Pyrolysis and hydrolysis of mixed polymer waste comprising (1998-10-13),
2. 5504259 - Process to convert biomass and refuse derived fuel to ethers and/or (1996-04-02),
3. 5464602 - Sequential pyrolysis of plastic to recover polystyrene HCL and (1995-11-07),
4. 5386070 - Pyrolysis of polystyrene - polyphenylene oxide to recover styrene and (1995-01-31),
5. 5359099 - Controlled catalytic and thermal sequential pyrolysis and hydrolysis of (1994-10-25),
6. 5359061 - Controlled catalytic and thermal sequential pyrolysis and hydrolysis of (1994-10-25),
7. 5321174 - Controlled catalystic and thermal sequential pyrolysis and hydrolysis of (1994-06-14),
8. 5300704 - Controlled catalytic and thermal sequential pyrolysis and hydrolysis of (1994-04-05),
9. 5235021 - Resole resin products derived from fractionated organic and aqueous (1993-08-10),
10. 5223601 - Phenolic compounds containing/neutral fractions extract and products (1993-06-29),
11. 5216149 - Controlled catalytic and thermal sequential pyrolysis and hydrolysis of (1993-06-01),
12. 5136111 - Controlled catalytic and thermal sequential pyrolysis and hydrolysis of (1992-08-04),
13. 5091499 - Process for preparing phenolic formaldehyde resole resin products (1992-02-25),
14. 4964995 - Supercritical separation process for complex organic mixtures (1990-10-23),
15. 4942269 - Process for fractionating fast-pyrolysis oils, and products derived (1990-07-17),

Title: Inventor Helena L Chum - Pioneering Innovations in Arvada, CO

Introduction: Helena L Chum is a distinguished inventor based in Arvada, CO, known for her groundbreaking contributions to the field of renewable energy and sustainable technologies.

Latest Patents: Helena L Chum holds several patents related to solar energy systems, biofuels production, and waste-to-energy conversion technologies, showcasing her commitment to environmental sustainability.

Career Highlights: With a career spanning over two decades, Helena has worked tirelessly to develop innovative solutions to address the world's energy challenges. Her work has been recognized globally for its impact and ingenuity.

Collaborations: Throughout her career, Helena has collaborated with leading research institutions, universities, and companies to further advance the development and implementation of her inventions. Her collaborative spirit has been instrumental in bringing her ideas to life.

Conclusion: Inventor Helena L Chum's dedication to creating sustainable energy solutions has not only transformed the industry but has also paved the way for a greener and more sustainable future for generations to come.

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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