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name:-0.069486141204834
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Ratto; Douglas Patent Filings

Ratto; Douglas

Patent Applications and Registrations

Patent applications and USPTO patent grants for Ratto; Douglas.The latest application filed is for "tunable multi-zone gas injection system".

Company Profile
1.3.3
  • Ratto; Douglas - Santa Clara CA
*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.
Patent Activity
PatentDate
Tunable multi-zone gas injection system
Grant 10,403,475 - Cooperberg , et al. Sep
2019-09-03
Tunable Multi-zone Gas Injection System
App 20150235811 - Cooperberg; David J. ;   et al.
2015-08-20
Tunable multi-zone gas injection system
Grant 9,051,647 - Cooperberg , et al. June 9, 2
2015-06-09
Tunable Multi-zone Gas Injection System
App 20100041238 - Cooperberg; David J. ;   et al.
2010-02-18
Tunable multi-zone gas injection system
App 20030070620 - Cooperberg, David J. ;   et al.
2003-04-17

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