Forward Citations = 43

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8 inventors (with patents filed for the assignee):

Julius Scherzer (1 out of 14 patents)

King H Rosette (1 out of 4 patents)

Herbert Packer (1 out of 7 patents)

4. Adrian P Humphries (1 out of 2 patents)

5. Oley D Wimer (1 out of 3 patents)

6. Frank M Sparacia (1 out of 2 patents)

7. Kevin P Gallavan (1 out of 2 patents)

8. Dennis R Taylor (1 out of 2 patents)

4 patents: Sort by Forward Citations

1. 4839090 - Extrusion of macrocrystal scientillation phosphors (1989-06-13),

2. 4735815 - Treatment of impure frying oils (1988-04-05),

3. 4631409 - Scintillator crystal having a highly reflective surface (1986-12-23),

4. 4512961 - Dealumination of faujasite-type zeolites using ion exchange resins (1985-04-23),

Company Overview

Harshaw/Filtrol is a leading provider of filtration solutions for industrial and commercial applications. With over 50 years of experience, the company specializes in designing and manufacturing high-quality filters, strainers, and filtration systems to meet the specific needs of their customers. Harshaw/Filtrol is known for their commitment to innovation, quality, and customer satisfaction, making them a trusted partner in the industry.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

4 Patents

#104 in Oakland, CA

#14,058 in California

#60,671 in US

Oakland, CA, United States of America

Harshaw/filtrol

Forward Citations = 43

8 inventors:

Julius Scherzer (1 out of 14 patents)

King H Rosette (1 out of 4 patents)

Herbert Packer (1 out of 7 patents)

4. Adrian P Humphries (1 out of 2 patents)

5. Oley D Wimer (1 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Harshaw/filtrol. Retrieved from https://idiyas.com/company/harshaw-filtrol

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]