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For the Inventor, By the Inventor

Mount Prospect, IL, United States of America

Leonard G Marianowski

This inventor holds 27 USPTO granted patents, plus 1 CIPO patent, primarily in Fuel Cell Technology. Top assignees: Institute of Gas Technology, Gas Technology Institute, American Gas Association. Active years: 1977-2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Leonard G Marianowski. Retrieved from https://idiyas.com/inventor/leonard-g-marianowski

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

USPTO Granted Patents = 27

% Patents Active = 100.0


Average Co-Inventor Count = 2.2

ph-index = 15

Forward Citations = 801(Granted Patents)


Location History:

  • South Holland, IL (US) (1977 - 1991)
  • Mt. Prospect, IL (US) (1991 - 1999)
  • Mount Prospect, IL (US) (1990 - 2005)

Company Filing History:

goldMedal23 out of 236 
 
Institute of Gas Technology
 patents
silverMedal2 out of 271 
 
Gas Technology Institute
 patents
bronzeMedal1 out of 18 
 
American Gas Association
 patents
4. 1 out of 994 
 
Electric Power Research Institute Incorporated
 patents

Years Active: 1977-2005

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Areas of Expertise:
Bipolar Plates
Fuel Cells
Electrochemical Separation
Proton Exchange Membrane
Molten Carbonate
Hydrogen Production
Corrosion Inhibition
High Temperature Electrolyte
Dual Compartment Anode
Current Collectors
Porous Oxide
Stack Design
27 patents (USPTO):Explore Patents
1. 6905793 - Folded metal bipolar sheets for fuel cells (2005-06-14),
2. 6723462 - Low cost metal bipolar plates and current collectors for polymer electrolyte membrane fuel cells (2004-04-20),
3. 6379833 - Alternative electrode supports and gas distributors for molten carbonate fuel cell applications (2002-04-30),
4. 6261710 - Sheet metal bipolar plate design for polymer electrolyte membrane fuel cells (2001-07-17),
5. 5942347 - Proton exchange membrane fuel cell separator plate (1999-08-24),
6. 5503945 - Separator plate for a fuel cell (1996-04-02),
7. 5362578 - Integrated main rail, feed rail, and current collector (1994-11-08),
8. 5342706 - Fully internal manifolded fuel cell stack (1994-08-30),
9. 5240786 - Laminated fuel cell components (1993-08-31),
10. 5227256 - Fully internal manifolded fuel cell stack (1993-07-13),
11. 5077148 - Fully internal manifolded and internal reformed fuel cell stack (1991-12-31),
12. 5071718 - Use of sulfur containing fuel in molten carbonate fuel cells (1991-12-10),
13. 4999155 - Method for forming porous oxide dispersion strengthened carbonate fuel (1991-03-12),
14. 4963442 - Internal manifolded molten carbonate fuel cell stack (1990-10-16),
15. 4908113 - Apparatus for the electrochemical separation of oxygen (1990-03-13),

Title: Leonard G Marianowski - Pioneering Inventor from Mount Prospect

Introduction: Leonard G Marianowski is a distinguished inventor hailing from Mount Prospect, Illinois. His innovative spirit and dedication to creating groundbreaking solutions have solidified his reputation in the world of patents and inventions.

Latest Patents: Leonard G Marianowski holds several patents in various fields, showcasing his versatility and ingenuity. His recent patents focus on cutting-edge technologies that aim to revolutionize industries and improve everyday life.

Career Highlights: Throughout his illustrious career, Leonard G Marianowski has consistently pushed the boundaries of innovation. His contributions have not only earned him recognition but have also significantly impacted the fields in which he operates.

Collaborations: Leonard G Marianowski has collaborated with leading experts, researchers, and companies to bring his inventions to life. These collaborations have been instrumental in the success and widespread adoption of his patented technologies.

Conclusion: Leonard G Marianowski's passion for innovation and his relentless pursuit of excellence continue to inspire aspiring inventors worldwide. His legacy as a pioneering inventor from Mount Prospect, Illinois, is a testament to the power of creativity and perseverance in the world of patents and inventions.

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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