Trademarks = 6

Forward Citations = 133

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3 inventors (with patents filed for the assignee):

Leonard N Nysted (2 out of 8 patents)

Paul R Bald (1 out of 1 patent)

Irl H Marshall, Jr (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 4974618 - Apparatus and method for fabric cleaning with foam (1990-12-04),

2. 4360946 - Apparatus for cleaning floors and floor coverings (1982-11-30),

3. 4330086 - Nozzle and method for generating foam (1982-05-18),

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

3 Patents

#46 in Deerfield, IL

#3,452 in Illinois

#73,860 in US

Deerfield, IL, United States of America

Duraclean International, Inc.

Forward Citations = 133

3 inventors:

Leonard N Nysted (2 out of 8 patents)

Paul R Bald (1 out of 1 patent)

Irl H Marshall, Jr (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Duraclean International, Inc.. Retrieved from https://idiyas.com/company/duraclean-international

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]