Growing community of inventors

Saint Paul, MN, United States of America

Mark L Steingraber

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 = 59

Mark L SteingraberAllen M Danley (1 patent)Mark L SteingraberMark L Steingraber (1 patent)Allen M DanleyAllen M Danley (11 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Plastics, Inc. (1 from 63 patents)


1 patent:

1. 4477705 - Microwave oven popcorn popper, steamer and roaster

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as of
12/20/2025
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