Inventor

Chih-Long Chang

Inventor
Taipei, TW

Overview

15→
Patents
2010–2021
Patent span
Physics
Primary field (CPC G)

Patents· 15 as inventor

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

G06Fprimary
G06FElectric digital data processing24%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers18%
H03GControl of amplification12%
A61KPreparations for medical, dental or toiletry purposes6%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations6%
C07KPeptides6%
G09BEducational or demonstration appliances6%
G10LSpeech analysis techniques or speech synthesis6%
H04SStereophonic systems6%
G06KGraphical data reading3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2010–2013Patents assigned to CHANG CHIH-LONG (4)· patent assignee history
2010–2013Patents assigned to YANG KUO-PING (3)· patent assignee history
2010–2013Patents assigned to CHENG MING-HSIANG (2)· patent assignee history
2010Patents assigned to CHIANG CHIEN-LIANG (2)· patent assignee history
2010–2020Based in Taipei, TW· patent location history
2013Based in Hsinchu, TW· patent location history
2016–2020Patents assigned to UNLIMITER MFA CO LTD (8)· patent assignee history
2021Based in Zhubei, TW· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
UNLIMITER MFA CO LTD82016–2020
CHANG CHIH-LONGself42010–2013
YANG KUO-PING32010–2013
CHENG MING-HSIANG22010–2013
CHIANG CHIEN-LIANG22010
Locations
LocationPatentsSpan
Taipei, TW132010–2020
Zhubei, TW12021
Hsinchu, TW12013