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Inventor

Frank Zhenhuan Liu

Inventor
San Carlos, CA, US

Overview

5→
Patents
2008–2018
Patent span
Human necessities
Primary field (CPC A)

Patents· 5 as inventor

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

A61Cprimary
A61CDentistry45%
B33YAdditive manufacturing, i.e. manufacturing of three-dimensional [3d] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3d printing, stereolithography or selective laser sintering36%
G06FElectric digital data processing18%
PatentTitleYear
9,939,999Treatment of teeth by aligners20188,740,614'Treatment of teeth by aligners'20148,087,932'Correcting the position of teeth in dental arch model'20127,831,322'Producing wrinkled dental aligner for dental treatment'20107,435,084'System and methods for casting physical tooth model'2008

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2008–2018Patents assigned to ALIGN TECHNOLOGY INC (5)· patent assignee history
2008–2010Based in Redwood City, CA, US· patent location history
2012–2014Patents assigned to LIU FRANK ZHENHUAN (2)· patent assignee history
2012–2018Based in San Carlos, CA, US· patent location history
2014Patents assigned to WEN HUAFENG (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ALIGN TECHNOLOGY INC52008–2018
LIU FRANK ZHENHUANself22012–2014
WEN HUAFENG12014
Locations
LocationPatentsSpan
San Carlos, California, US32012–2018
Redwood City, California, US22008–2010