Growing community of inventors

Irvine, CA, United States of America

Mark Spitler

Average Co-Inventor Count = 5.00

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 = 5

Mark Spitler ↔ Frederick J Lawrence (1 patent)Mark Spitler ↔ William D Baker (1 patent)Mark Spitler ↔ George M Cross (1 patent)Mark Spitler ↔ Louis A Rossi (1 patent)Mark SpitlerMark Spitler (1 patent)Frederick J LawrenceFrederick J Lawrence (23 patents)William D BakerWilliam D Baker (11 patents)George M CrossGeorge M Cross (10 patents)Louis A RossiLouis A Rossi (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Gradco Ltd. (1 from 7 patents)


1 patent:

1. 5603494 - Sheet mailbox having a rotatable sheet distributor

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as of
12/19/2025
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