Inventor
Chang Liu
Inventor
Champaign, IL, US
Overview
Patents· 46 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Tprimary
Y10TTechnical subjects covered by former us classification8%
H01HElectric switches7%
G01NInvestigating or analysing materials by determining their chemical or physical properties6%
G01PMeasuring linear or angular speed, acceleration, deceleration, or shock6%
G01FMeasuring volume, volume flow, mass flow or liquid level5%
G01QScanning-probe techniques or apparatus5%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices5%
G01KMeasuring temperature4%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure4%
G01RMeasuring electric variables4%
PatentTitleYear
11,088,040Cell-like floating-gate test structure202110,820,689Adjustable lifting support device202010,771,067System and method for hitless clock switching202010,749,504Circuit and method for automatically calibrating phase interpolator202010,587,274Method and system for maintaining a low-jitter low-temperature-drift clock during a holdover operation2020D0840408Electronic device holder20199,801,146'Terminal and synchronization control method among terminals'20179,655,439'Supporting rack'20179,432,330'Data interaction method, apparatus, and system'20169,251,974'Thin key structure and pressable module thereof'20169,111,700'Thin push button structure'20159,105,422'Thin key structure'20158,431,080'Soft MEMS'20138,242,936'Control panel and control method thereof'20128,186,866'Metallic panel assembly having multilayer arrays of micropores'20128,093,519'Keypad module of non-backlight panel and panel assembly of the same'20128,056,216'Method of manufacturing non-backlighted illuminating keypad'20118,056,419'Artificial lateral line'20118,022,324'Method of manufacturing a keypad structure having a transparent keycap and keypad structure having a transparent keycap'20117,893,375'Non-backlighted illuminating keypad'20117,768,376'Conformal mesh for thermal imaging'20107,737,045'Microfabricated micro fluid channels'20107,661,319'Micromachined artificial haircell'20107,644,624'Artificial lateral line'20107,534,001'Light-guiding method of light-guiding plate and key pad assembly using the light-guiding plate'20097,523,650'Multifunctional probe array system'20097,516,671'Sensor chip and apparatus for tactile and/or flow sensing'20097,509,869'Microfabricated pressure and shear stress sensors'20097,503,683'Light guide method of double-layer light guide plate and keypad structure using the double-layer light guide plate'20097,501,069'Flexible structures for sensors and electronics'20097,451,537'Method for fabricating a microscale anemometer'20087,445,675'Sensor for monitoring material deposition'20087,402,849'Parallel, individually addressable probes for nanolithography'20087,357,035'Sensor chip and apparatus for tactile and/or flow sensing'20087,351,303'Microfluidic systems and components'20087,343,136'Apparatus for detecting environmental conditions for a structure or article'20087,281,419'Multifunctional probe array system'20077,247,895'Electrostatic nanolithography probe actuation device and method'20077,217,396'Microfabricated micro fluid channels'20077,112,918'Microdischarge devices and arrays having tapered microcavities'20067,081,624'Scanning probe microscopy probes and methods'20066,923,054'Microscale out-of-plane anemometer'20056,867,443'Parallel, individually addressable probes for nanolithography'20056,642,129'Parallel, individually addressable probes for nanolithography'20036,418,006'Wide tuning range variable MEMs capacitor'20026,166,478'Method for assembly of microelectromechanical systems using magnetic actuation'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000–2013Patents assigned to UNIV ILLINOIS (26)· patent assignee history
2000–2010Based in Champaign, IL, US· patent location history
2009–2016Patents assigned to ICHIA TECH INC (11)· patent assignee history
2009–2020Based in Taoyuan, TW· patent location history
2010–2013Based in Winnetka, IL, US· patent location history
2011–2012Patents assigned to LIU CHANG-LI (4)· patent assignee history
2011–2013Patents assigned to ENGEL JONATHAN (2)· patent assignee history
2011–2013Patents assigned to LIU CHANG (2)· patent assignee history
2015–2016Based in Taoyuan County, TW· patent location history
2020Based in Beijing, CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| UNIV ILLINOIS | 26 | 2000–2013 |
| ICHIA TECH INC | 11 | 2009–2016 |
| LIU CHANG-LIself | 4 | 2011–2012 |
| ENGEL JONATHAN | 2 | 2011–2013 |
| LIU CHANGself | 2 | 2011–2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Champaign, Illinois, US | 22 | 2000–2010 |
| Taoyuan, TW | 11 | 2009–2020 |
| Beijing, CN | 3 | 2020 |
| Taoyuan County, TW | 3 | 2015–2016 |
| Winnetka, Illinois, US | 3 | 2010–2013 |