Inventor
Wen-Cheng Chang
Inventor
Jhubei City, TW
Overview
Patents· 24 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Tprimary
Y10TTechnical subjects covered by former us classification15%
B60PVehicles adapted for load transportation or to transport, to carry, or to comprise special loads or objects13%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1010%
B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding4%
B82YSpecific uses or applications of nanostructures4%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges4%
F16GBelts, cables, or ropes, predominantly used for driving purposes4%
H01FMagnets4%
H05KPrinted circuits4%
H10DInorganic electric semiconductor devices4%
PatentTitleYear
9,958,002Dust-proof safety hook20189,837,716Multiband antenna20179,350,616'Bandwidth prediction using a past available bandwidth value and a slope calculated from past available bandwidth values'20169,206,830'Flexible positioning post'20159,114,750'Hand puller with rope reel'20158,995,102'Display and electrostatic discharge protection apparatus'20158,561,267'Composite-material buckle'20138,528,849'Ratchet buckle'20138,499,662'Pull handle structure of a hand puller'20138,402,611'Positioning hook structure for a hand puller'2013D0657217'Handle of a hand puller'20127,651,072'Cable tightening device with a base having a lower cost of fabrication'20107,448,596'Cable tightening device having anti-theft function'20087,100,898'Lifting jack'20066,352,599'High performance iron-rare earth-boron-refractory-cobalt nanocomposite'20026,332,933'Iron-rare earth-boron-refractory metal magnetic nanocomposites'20016,313,516'Method for making high-sheet-resistance polysilicon resistors for integrated circuits'20016,147,372'Layout of an image sensor for increasing photon induced current'20006,054,359'Method for making high-sheet-resistance polysilicon resistors for integrated circuits'20005,904,570'Method for polymer removal after etching'19995,763,316'Substrate isolation process to minimize junction leakage'19985,719,087'Process for bonding pad protection from damage'19985,639,342'Method of monitoring and controlling a silicon nitride etch step'19975,633,210'Method for forming damage free patterned layers adjoining the edges of high step height apertures'1997Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1997–2001Patents assigned to TAIWAN SEMICONDUCTOR MFG (8)· patent assignee history
1997–1999Based in Taoyuan, TW· patent location history
1997–1998Based in Tau-Yuan, TW· patent location history
1998–2001Based in Hsinchu, TW· patent location history
2001–2002Patents assigned to SANTOKU CORP (2)· patent assignee history
2006–2016Patents assigned to CHANG WEN-CHENG (4)· patent assignee history
2008–2018Based in Jhubei City, TW· patent location history
2012–2018Patents assigned to WIN CHANCE METAL CO LTD (7)· patent assignee history
2012–2013Patents assigned to CHANG WEN CHENG (5)· patent assignee history
2015Based in New Taipei, TW· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TAIWAN SEMICONDUCTOR MFG | 8 | 1997–2001 |
| WIN CHANCE METAL CO LTD | 7 | 2012–2018 |
| CHANG WEN CHENGself | 5 | 2012–2013 |
| CHANG WEN-CHENGself | 4 | 2006–2016 |
| SANTOKU CORP | 2 | 2001–2002 |
Locations
| Location | Patents | Span |
|---|---|---|
| Jhubei City, TW | 9 | 2008–2018 |
| Hsinchu, TW | 4 | 1998–2001 |
| New Taipei, TW | 2 | 2015 |
| Taoyuan, TW | 2 | 1997–1999 |
| Tau-Yuan, TW | 2 | 1997–1998 |