Growing community of inventors

Oconomowoc, WI, United States of America

Mark Donald Schaefer

Average Co-Inventor Count = 2.40

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

Mark Donald SchaeferM Randall Pasternak (2 patents)Mark Donald SchaeferJoachim Banik (1 patent)Mark Donald SchaeferJames Marschalek (1 patent)Mark Donald SchaeferPaul Mans (1 patent)Mark Donald SchaeferMark Donald Schaefer (3 patents)M Randall PasternakM Randall Pasternak (6 patents)Joachim BanikJoachim Banik (23 patents)James MarschalekJames Marschalek (5 patents)Paul MansPaul Mans (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Randall Marketing International Inc. (2 from 2 patents)

2. Orbis Corporation (1 from 79 patents)


3 patents:

1. 12180985 - Fastener assembly for display cards, signs and the like

2. 11217123 - Display card holder assembly and methods

3. 9376255 - Waste container with gravity latch

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as of
1/10/2026
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