Inventor

Helen Zhang

Inventor

Burbank, CA, US

Overview

4→

Patents

2008–2016

Patent span

Electricity

Primary field (CPC H)

Patents· 4 as inventor

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

H04Nprimary

H04NPictorial communication, e.g. television29%

A01NPreservation of bodies of humans or animals or plants or parts thereof14%

C12NMicroorganisms or enzymes14%

H04JMultiplex communication14%

H04LTransmission of digital information, e.g. telegraphic communication14%

Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use14%

PatentTitleYear

9,481,865'Serum-free freezing medium used in adipose-derived stem cells and establishment of adipose-derived stem cell library'2016 9,313,538'Methods and systems for establishing a mode of communication between particular users based on perceived lulls in media assets'2016 9,313,537'Methods and systems for presenting advertisements to particular users based on perceived lulls in media assets'2016 7,414,985'Link aggregation'2008

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2008Patents assigned to CIENA CORP (1)· patent assignee history

2008Based in Santa Clara, CA, US· patent location history

2016Patents assigned to ROVI GUIDES INC (2)· patent assignee history

2016Patents assigned to CAO WEI (1)· patent assignee history

2016Patents assigned to CELLULAR BIOMEDICINE GROUP (SHANGHAI) LTD (1)· patent assignee history

2016Patents assigned to CELLULAR BIOMEDICINE GROUP (WUXI) LTD (1)· patent assignee history

2016Based in Burbank, CA, US· patent location history

2016Based in Shanghai, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
ROVI GUIDES INC	2	2016
CAO WEI	1	2016
CELLULAR BIOMEDICINE GROUP (SHANGHAI) LTD	1	2016
CELLULAR BIOMEDICINE GROUP (WUXI) LTD	1	2016
CIENA CORP	1	2008

Locations

Location	Patents	Span
Burbank, California, US	2	2016
Shanghai, CN	1	2016
Santa Clara, California, US	1	2008