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Michael Robert Sirotka II
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Houston, TX, US
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Patents Grants
last 30 patents
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Patent Grant
Resistive skate device
Patent number
11,872,439
Issue date
Jan 16, 2024
Revathletic LLC
Michael Robert Sirotka
A63 - SPORTS GAMES AMUSEMENTS
Patents Applications
last 30 patents
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Patent Application
RESISTIVE SKATE DEVICE
Publication number
20220203156
Publication date
Jun 30, 2022
Revathletic LLC/dba RevSkate
Michael Robert Sirotka
A63 - SPORTS GAMES AMUSEMENTS