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For the Inventor, By the Inventor

Lafayette, IN, United States of America

Schwab Corporation


USPTO Granted Patents = 2

Forward Citations = 40

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2 inventors (with patents filed for the assignee):

goldMedal Donald J Ehrlich (1 out of 8 patents)

silverMedal Randolph L Engler (1 out of 1 patent)


2 patents:

1. 7472972 - Filing cabinet having a fireproof retractable door (2009-01-06),
2. 6158833 - Fire-resistant computer storage apparatus (2000-12-12),
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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#22 in Lafayette, IN

#1,315 in Indiana

#92,554 in US

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Lafayette, IN, United States of America

Schwab Corporation

Forward Citations = 40

2 inventors:

goldMedal Donald J Ehrlich (1 out of 8 patents)

silverMedal Randolph L Engler (1 out of 1 patent)

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