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Norwood Park Township, IL, United States of America

Albert Bischof

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 = 10

Albert BischofNorbert A Rumps, Jr (1 patent)Albert BischofAlbert Bischof (1 patent)Norbert A Rumps, JrNorbert A Rumps, Jr (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. American Telephone and Telegraph Company - At&t Teletype (1 from 3 patents)


1 patent:

1. 4804238 - Torsion spring powered door

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as of
12/11/2025
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