Growing community of inventors

San Francisco, CA, United States of America

April Underwood

Average Co-Inventor Count = 12.00

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 = 15

April UnderwoodIlan Frank (2 patents)April UnderwoodMyles Grant (2 patents)April UnderwoodDaniel Stewart Butterfield (2 patents)April UnderwoodTodd Lindsay Wirth (2 patents)April UnderwoodCallum Henderson-Begg (2 patents)April UnderwoodLeah Jones (2 patents)April UnderwoodSamantha Stoller (2 patents)April UnderwoodEric Vierhaus (2 patents)April UnderwoodYongxing Deng (2 patents)April UnderwoodGregory Pelly (2 patents)April UnderwoodMatthew Mullen (2 patents)April UnderwoodApril Underwood (2 patents)Ilan FrankIlan Frank (21 patents)Myles GrantMyles Grant (21 patents)Daniel Stewart ButterfieldDaniel Stewart Butterfield (16 patents)Todd Lindsay WirthTodd Lindsay Wirth (13 patents)Callum Henderson-BeggCallum Henderson-Begg (12 patents)Leah JonesLeah Jones (12 patents)Samantha StollerSamantha Stoller (6 patents)Eric VierhausEric Vierhaus (6 patents)Yongxing DengYongxing Deng (3 patents)Gregory PellyGregory Pelly (2 patents)Matthew MullenMatthew Mullen (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Slack Technologies, Inc. (2 from 245 patents)


2 patents:

1. 11810072 - Method, apparatus, and computer program product for authorizing and authenticating user communication within an enterprise group-based communication platform

2. 10997557 - Method, apparatus, and computer program product for authorizing and authenticating user communication within an enterprise group-based communication platform

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as of
1/3/2026
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