Inventor · disambiguated record
William Chang
Also filed as: CHANG WILLIAM · CHANG WILLIAM NAI-JEN
7 granted patents·4 pending applications·163 citations·filing 1996–2025
87Inventor score
Top patents by PatentIndex Score
11 records- 0194US11446470B2Catheter handle with torque mechanism and valve relief componentMEDTRONIC INC·Filed 2020·Granted Sep 20, 2022·6 cites·19 claims
- 0288US12329916B2Catheter handle with torque mechanism and valve relief componentMEDTRONIC INC·Filed 2022·Granted Jun 17, 2025·1 cites·11 claims
- 0386US6485076B1Versatile attachment for a shovelFiled 2001·Granted Nov 26, 2002·44 cites·3 claims
- 0482US6416207B1Floor lamp with a plurality of adjustable light-source carrying armsFiled 2000·Granted Jul 9, 2002·58 cites·7 claims
- 0575US6276645B1Adjustable garbage bag holderFiled 2000·Granted Aug 21, 2001·17 cites·8 claims
- 0673US2025269145A1Catheter handle with torque mechanism and valve relief componentMEDTRONIC INC·Filed 2025·Application pending·0 cites
- 0753US2023123266A1Catheter handle with torque mechanism and valve relief componentMEDTRONIC INC·Filed 2022·Application pending·0 cites
- 0850US5857364ATwo-way lock mechanism with cam actionDIGITAL EQUIPMENT CORP·Filed 1997·Granted Jan 12, 1999·24 cites·6 claims
- 0949US2024398472A1Valve leaflet resection deviceMEDTRONIC INC·Filed 2022·Application pending·0 cites
- 1046US5695229AInterchangable shovel/scraperFiled 1996·Granted Dec 9, 1997·13 cites·2 claims
- 1141US2008060338A1Ergonomic free standing gardening toolCHANG WILLIAM NAI-JEN·Filed 2006·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when William Chang files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →