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Palatine, IL, United States of America

Rollie M Goodrich

Average Co-Inventor Count = 2.00

ph-index = 2

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 17

Rollie M GoodrichFrank J Herdzina, Jr (4 patents)Rollie M GoodrichRollie M Goodrich (4 patents)Frank J Herdzina, JrFrank J Herdzina, Jr (17 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Service Tool Die & Mfg. Company (4 from 9 patents)


4 patents:

1. 5182934 - Dual lane conversion system

2. 5017072 - Dual lane conversion system

3. 4904140 - Dual lane conversion system

4. 4854799 - Dual lane conversion system

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as of
12/22/2025
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