Jen; Cheng-Kuei

Patent Applications and Registrations

Patent applications and USPTO patent grants for Jen; Cheng-Kuei.The latest application filed is for "porosity control in piezoelectric films".

Company Profile

1.8.4

Jen; Cheng-Kuei - Brossard 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

Patent	Date
Porosity control in piezoelectric films Grant 10,751,756 - Kobayashi , et al. A	2020-08-25
Porosity Control In Piezoelectric Films App 20170087593 - KOBAYASHI; Makiko ; et al.	2017-03-30
Porosity control in piezoelectric films Grant 9,548,439 - Kobayashi , et al. January 17, 2	2017-01-17
Porosity Control In Piezoelectric Films App 20140184022 - Kobayashi; Makiko ; et al.	2014-07-03
Ultrasonic apparatus and methods for the monitoring of melting, mixing and chemical reaction processes Grant 7,080,556 - Jen , et al. July 25, 2	2006-07-25
Ultrasonic apparatus and methods for the monitoring of melting, mixing and chemical reaction processes App 20040037742 - Jen, Cheng-Kuei ; et al.	2004-02-26
Acoustic waveguides having a varying velocity distribution with reduced trailing echoes Grant 5,241,287 - Jen August 31, 1	1993-08-31
Fiber-optic piezoelectric devices Grant 5,135,295 - Jen , et al. August 4, 1	1992-08-04
Method of, and an apparatus for, evaluating forming capabilities of solid plate Grant 4,790,188 - Bussiere , et al. December 13, 1	1988-12-13
Birefringent single-mode acoustic fiber Grant 4,742,318 - Jen , et al. May 3, 1	1988-05-03

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