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For the Inventor, By the Inventor

Milpitas, CA, United States of America

Riospring, Inc.


USPTO Granted Patents = 2

% Expired Patents = 100.0

Forward Citations = 4

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2 inventors (with patents filed for the assignee):

goldMedal Avraham Perahia (2 out of 7 patents)

silverMedal David M Drouin (1 out of 12 patents)


2 patents:

1. 6903893 - Energy storage for use in emergency head retraction in disk drives (2005-06-07),
2. 6894453 - Method and apparatus to measure disk drive head load/unload velocity (2005-05-17),
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USPTO Data Jan 1 1976 - Sep 15 2026

2 Patents

#198 in Milpitas, CA

#20,971 in California

#94,722 in US

Milpitas, CA (US)
Milpitas, CA, United States of America

Riospring, Inc.

Forward Citations = 4

2 inventors:

goldMedal Avraham Perahia (2 out of 7 patents)

silverMedal David M Drouin (1 out of 12 patents)

Please report any incorrect information to [email protected]
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