EPO Patents = 3

Trademarks = 2

Forward Citations = 6

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9 inventors (with patents filed for the assignee):

Mark Smith (2 out of 2 patents)

Tomas Richter (2 out of 4 patents)

Corey Forster (2 out of 3 patents)

4. Donald Abrino (2 out of 10 patents)

5. Stephen Karns (1 out of 1 patent)

6. David Hartwich (1 out of 3 patents)

7. Brian Burns (3 patents)

8. Vic Lafay (1 patent)

9. Duane Graham (0 patent)

10. Joshua Sayre (1 patent)

11. Robert C Steele (1 patent)

6 patents: Sort by Forward Citations

1. 12595211 - Refractory lining design and separation via destructive hydration (2026-04-07),

2. 11701705 - Diffusion article (2023-07-18),

3. 11338357 - Diffusion article (2022-05-24),

4. 11237124 - Predictive refractory performance measurement system (2022-02-01),

5. 10962286 - Mounting hardware for refractory module (2021-03-30),

6. 10859316 - Predictive refractory performance measurement system (2020-12-08),

Company Overview

HarbisonWalker International (HWI) is a leading supplier of refractory products and services. With a history dating back to 1865, HWI has a strong foundation in the industry and a commitment to innovation. They offer a wide range of refractory solutions for various industries, including iron and steel, nonferrous metals, and glass. HWI's products are known for their quality, performance, and reliability, making them a trusted partner for customers worldwide.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

6 Patents

#9 in Moon Township, PA

#1,623 in Pennsylvania

#44,981 in US

Moon Township, PA, United States of America

Harbisonwalker International, Inc.

Forward Citations = 6

9 inventors:

Mark Smith (2 out of 2 patents)

Tomas Richter (2 out of 4 patents)

Corey Forster (2 out of 3 patents)

4. Donald Abrino (2 out of 10 patents)

5. Stephen Karns (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Harbisonwalker International, Inc.. Retrieved from https://idiyas.com/company/harbisonwalker-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]

3 patents (EPO):

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]