Forward Citations = 9

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4 inventors (with patents filed for the assignee):

David J Nell (2 out of 5 patents)

Frederick A Zenz (1 out of 11 patents)

Wayne G Schuliger (1 out of 1 patent)

4. Gordon W Czop (1 out of 2 patents)

2 patents: Sort by Forward Citations

1. 5368824 - Gas distribution system for fluidized bed reactors (1994-11-29),

2. 5080025 - Cocurrent oxidation method in a multiple hearth furnace (1992-01-14),

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

2 Patents

#2,214 in New York, NY

#5,846 in New York

#94,782 in US

New York, NY, United States of America

Marquess and Nell, Inc.

Forward Citations = 9

4 inventors:

David J Nell (2 out of 5 patents)

Frederick A Zenz (1 out of 11 patents)

Wayne G Schuliger (1 out of 1 patent)

4. Gordon W Czop (1 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Marquess and Nell, Inc.. Retrieved from https://idiyas.com/company/marquess-and-nell

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

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]