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Inventor

Zhao Ma

Inventor
Xi'an, CN

Overview

2→
Patents
2019–2021
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 2 as inventor

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

F28Dprimary
F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact20%
F28FDetails of heat-exchange and heat-transfer apparatus, of general application20%
G06TImage data processing or generation, in general20%
G09GArrangements or circuits for control of indicating devices using static means to present variable information20%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution20%
PatentTitleYear
11,118,845Two-layer variable-diameter packed bed heat storage apparatus and heat storage ball preparation method202110,445,902Fetch reduction for fixed color and pattern sub-frames2019

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2019Patents assigned to QUALCOMM INC (1)· patent assignee history
2019Based in Fremont, CA, US· patent location history
2021Patents assigned to XIAN JIAOTONG UNIV SCHOOL OF ENERGY AND POWER ENGINEERING (1)· patent assignee history
2021Based in Xi'an, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
QUALCOMM INC12019
XIAN JIAOTONG UNIV SCHOOL OF ENERGY AND POWER ENGINEERING12021
Locations
LocationPatentsSpan
Xi'an, CN12021
Fremont, California, US12019