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Inventor

Zhen Hou

Inventor
Fremont, CA, US

Overview

16→
Patents
2003–2019
Patent span
Physics
Primary field (CPC G)

Patents· 16 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G02Bprimary
G02BOptical elements, systems or apparatus24%
G06TImage data processing or generation, in general15%
G01NInvestigating or analysing materials by determining their chemical or physical properties9%
H04NPictorial communication, e.g. television9%
G06FElectric digital data processing6%
G06KGraphical data reading6%
G10LSpeech analysis techniques or speech synthesis6%
H02JElectric power networks6%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light3%
G01PMeasuring linear or angular speed, acceleration, deceleration, or shock3%
PatentTitleYear
10,209,5013D microscope and methods of measuring patterned substrates201910,048,4803D microscope including insertable components to provide multiple imaging and measurement capabilities20189,664,888'Multi-surface optical 3D microscope'20179,645,381'Multi-surface optical 3D microscope'20179,389,408'3D microscope and methods of measuring patterned substrates'20169,036,869'Multi-surface optical 3D microscope'20158,976,366'System and method for monitoring LED chip surface roughening process'20158,247,928'Mobile phone and power supply system of the same'20128,023,671'Piezoelectric buzzer driving circuit'20117,957,972'Voice recognition system and method thereof'20117,760,451'Imaging device capable of retracting lens unit thereof and lens unit protecting method thereof'20107,723,870'Power switch system'20107,689,417'Method, system and apparatus for improved voice recognition'20107,397,621'Servo pattern characterization on magnetic disks'20086,813,642'Communication process by connecting server end in series with system under verification in a network'20046,581,169'Method and device for automatic computer testing on a plurality of computers through a local area network'2003

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2008Based in Milpitas, CA, US· patent location history
2010–2012Patents assigned to HON HAI PREC IND CO LTD (4)· patent assignee history
2010–2012Based in Guangdong, CN· patent location history
2010–2011Based in Foshan, CN· patent location history
2010–2011Based in Beijing, CN· patent location history
2012–2018Patents assigned to HOU ZHEN (5)· patent assignee history
2015–2019Patents assigned to ZETA INSTR INC (7)· patent assignee history
2015–2018Patents assigned to KUDINAR RUSMIN (4)· patent assignee history
2015–2018Patents assigned to LEE KEN KINSUN (4)· patent assignee history
2015–2019Based in Fremont, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ZETA INSTR INC72015–2019
HOU ZHENself52012–2018
HON HAI PREC IND CO LTD42010–2012
KUDINAR RUSMIN42015–2018
LEE KEN KINSUN42015–2018
Locations
LocationPatentsSpan
Fremont, California, US72015–2019
Guangdong, CN22010–2012
Foshan, CN22010–2011
Beijing, CN22010–2011
Milpitas, California, US12008