Inventor · disambiguated record
Frank Chang
Also filed as: CHANG FRANK · CHANG FRANK R · CHANG FRANK RONG-GAN
7 granted patents·1 pending application·199 citations·filing 1992–2024
86Inventor score
Top patents by PatentIndex Score
8 records- 0197US12064354B2Composite porous interbodies and methods of manufactureALPHATEC SPINE INC·Filed 2021·Granted Aug 20, 2024·14 cites·8 claims
- 0290US10940019B2Intervertebral cage with porosity gradientALPHATEC SPINE INC·Filed 2018·Granted Mar 9, 2021·18 cites·17 claims
- 0388US5836068AMobile gantry tool and methodNORTHROP GRUMMAN CORP·Filed 1997·Granted Nov 17, 1998·67 cites·33 claims
- 0483US5328540AMechanized lay up assembly line for composite structuresNORTHROP CORP·Filed 1992·Granted Jul 12, 1994·52 cites·23 claims
- 0581US12491083B2Composite porous interbodies and methods of manufactureALPHATEC SPINE INC·Filed 2024·Granted Dec 9, 2025·0 cites·20 claims
- 0680US6254317B1Triple gantry drilling systemNORTHROP GRUMMAN CORP·Filed 1999·Granted Jul 3, 2001·48 cites·8 claims
- 0768US2023172728A1Intervertebral Cage with Porosity GradientALPHATEC SPINE INC·Filed 2023·Application pending·0 cites
- 0865US11596527B2Intervertebral cage with porosity gradientALPHATEC SPINE INC·Filed 2021·Granted Mar 7, 2023·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →