Growing community of inventors

Joplin, MO, United States of America

Michael Shifferd

Average Co-Inventor Count = 2.25

ph-index = 2

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

Michael ShifferdDavid C Humphreys (3 patents)Michael ShifferdSteven Russell (1 patent)Michael ShifferdMichael Shifferd (3 patents)David C HumphreysDavid C Humphreys (12 patents)Steven RussellSteven Russell (2 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Tamko Building Products, Inc. (3 from 32 patents)


3 patents:

1. 10857759 - Peel and stick waterproofing material

2. 9821532 - Peel and stick waterproofing material

3. 9534378 - Peel and stick waterproofing material

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as of
12/11/2025
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