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For the Inventor, By the Inventor

Moon Township, PA, United States of America

Harbisonwalker International Holdings, Inc.


USPTO Granted Patents = 4

Trademarks = 14

Forward Citations = 0

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5 inventors (with patents filed for the assignee):

goldMedal David Hartwich (1 out of 1 patent)

silverMedal Kim M Duhe (1 out of 1 patent)

bronzeMedal Joshua Sayre (1 out of 1 patent)

4.  Korey Skala (1 out of 1 patent)

5.  Dennis A Golubic, Jr (1 out of 1 patent)


4 patents:

1. 12338179 - Refractory material with taggant to enable identification of material during reclaiming process (2025-06-24),
2. 12263487 - Refractory lining design for magnetic separation (2025-04-01),
3. 12135168 - Densification method and apparatus (2024-11-05),
4. D1048470 - Refractory anchor brick (2024-10-22),
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USPTO Data Jan 1 1976 - Dec 16 2025

4 Patents

#12 in Moon Township, PA

#2,183 in Pennsylvania

#58,988 in US

...
Moon Township, PA, United States of America

Harbisonwalker International Holdings, Inc.

Forward Citations = 0

5 inventors:

goldMedal David Hartwich (1 out of 1 patent)

silverMedal Kim M Duhe (1 out of 1 patent)

bronzeMedal Joshua Sayre (1 out of 1 patent)

4.  Korey Skala (1 out of 1 patent)

5.  Dennis A Golubic, Jr (1 out of 1 patent)

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