Growing community of inventors

Seattle, WA, United States of America

Matthew E Kowalczyk

Average Co-Inventor Count = 3.00

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 = 27

Matthew E KowalczykRussell Humphries (4 patents)Matthew E KowalczykErik Lee Holt (4 patents)Matthew E KowalczykMatthew E Kowalczyk (4 patents)Russell HumphriesRussell Humphries (43 patents)Erik Lee HoltErik Lee Holt (21 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Microsoft Technology Licensing, LLC (4 from 54,719 patents)


4 patents:

1. RE47518 - Image or pictographic based computer login systems and methods

2. RE46301 - Image or pictographic based computer login systems and methods

3. RE44725 - Image or pictographic based computer login systems and methods

4. 7953983 - Image or pictographic based computer login systems and methods

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as of
12/27/2025
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