Inventor

Chen Li

Inventor
Katy, TX, US

Overview

7→
Patents
2015–2019
Patent span
Physics
Primary field (CPC G)

Patents· 7 as inventor

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

G01Vprimary
G01VGeophysics23%
B06BMethods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency, e.g. for performing mechanical work in general15%
E21BEarth or rock drilling15%
H01LSemiconductor devices15%
H10NElectric solid-state devices not otherwise provided for12%
A61BDiagnosis4%
G01NInvestigating or analysing materials by determining their chemical or physical properties4%
G01SRadio direction-finding4%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them4%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2015–2019Patents assigned to HALLIBURTON ENERGY SERVICES INC (7)· patent assignee history
2015–2017Patents assigned to LI CHEN (2)· patent assignee history
2015Patents assigned to CHANG CHUNG (1)· patent assignee history
2015Patents assigned to CHENG ARTHUR (1)· patent assignee history
2015–2019Based in Katy, TX, US· patent location history
2017Patents assigned to MANDAL BATAKRISHNA (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HALLIBURTON ENERGY SERVICES INC72015–2019
LI CHENself22015–2017
CHANG CHUNG12015
CHENG ARTHUR12015
MANDAL BATAKRISHNA12017
Locations
LocationPatentsSpan
Katy, Texas, US72015–2019