Growing community of inventors

Germantown, TN, United States of America

Hans G Ogren

Average Co-Inventor Count = 2.00

ph-index = 1

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 = 11

Hans G OgrenJohn M Cullum (2 patents)Hans G OgrenHans G Ogren (2 patents)John M CullumJohn M Cullum (5 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Vulcan International, Inc. (2 from 5 patents)


2 patents:

1. 5354167 - Single-powered underlift towing apparatus

2. 5284415 - Single-powered underlift towing apparatus

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as of
12/20/2025
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