Assignee
CHANG CHUN PETROCHEMICAL CO LTD
TW·77 granted patents·10 pending applications·170 citations·filing 2014–2025
Top patents by PatentIndex Score
87 records- 0198US11746170B2Ethylene-vinyl alcohol copolymer resin composition, ethylene-vinyl alcohol copolymer film formed therefrom, and multilayer structure containing the sameCHANG CHUN PETROCHEMICAL CO LTD·Filed 2022·Granted Sep 5, 2023·6 cites·10 claims
- 0297US11124642B1Ethylene-vinyl alcohol copolymer composition with improved oxygen barrier propertiesCHANG CHUN PETROCHEMICAL CO LTD·Filed 2021·Granted Sep 21, 2021·8 cites·15 claims
- 0397US10975487B1Electrolytic copper foil and electrode and copper-clad laminate comprising the sameCHANG CHUN PETROCHEMICAL CO LTD·Filed 2020·Granted Apr 13, 2021·4 cites·18 claims
- 0497US10826052B1Electrolytic copper foil and electrode and lithium ion cell comprising the sameCHANG CHUN PETROCHEMICAL CO LTD·Filed 2020·Granted Nov 3, 2020·4 cites·20 claims
- 0597US9711799B1Copper foil having uniform thickness and methods for manufacturing the copper foilCHANG CHUN PETROCHEMICAL CO LTD·Filed 2016·Granted Jul 18, 2017·23 cites·19 claims
- 0696US11021599B1Ethylene-vinyl alcohol copolymer resin composition, film, and multi-layer structure comprising the same, as well as methods thereofCHANG CHUN PETROCHEMICAL CO LTD·Filed 2020·Granted Jun 1, 2021·12 cites·13 claims
- 0796US10622637B1Copper foil with excellent adhesionCHANG CHUN PETROCHEMICAL CO LTD·Filed 2019·Granted Apr 14, 2020·6 cites·16 claims
- 0896US10424793B2Electrodeposited copper foil and method for producing the same, and current collector for lithium secondary battery and secondary battery comprising the electrodeposited copper foilCHANG CHUN PETROCHEMICAL CO LTD·Filed 2017·Granted Sep 24, 2019·8 cites·19 claims
- 0996US10205170B1Copper foil for current collector of lithium secondary batteryCHANG CHUN PETROCHEMICAL CO LTD·Filed 2017·Granted Feb 12, 2019·10 cites·6 claims
- 1095US11050050B1Electrolytic copper foil and electrode and lithium-ion cell comprising the sameCHANG CHUN PETROCHEMICAL CO LTD·Filed 2020·Granted Jun 29, 2021·6 cites·20 claims
- 1195US10961378B1Ethylene-vinyl alcohol resin, film, and multi-layer structure comprising the same, and method for forming the ethylene-vinyl alcohol resinCHANG CHUN PETROCHEMICAL CO LTD·Filed 2019·Granted Mar 30, 2021·10 cites·23 claims
- 1295US10772199B2Low transmission loss copper foil and methods for manufacturing the copper foilCHANG CHUN PETROCHEMICAL CO LTD·Filed 2019·Granted Sep 8, 2020·5 cites·20 claims
- 1395US10711124B1Ethylene vinyl alcohol pellets as well as films thereofCHANG CHUN PETROCHEMICAL CO LTD·Filed 2019·Granted Jul 14, 2020·8 cites·19 claims
- 1494US10982084B1Ethylene vinyl alcohol copolymer resin composition as well as films and multi-layer structures thereofCHANG CHUN PETROCHEMICAL CO LTD·Filed 2020·Granted Apr 20, 2021·6 cites·14 claims
- 1594US9647272B1Surface-treated copper foilCHANG CHUN PETROCHEMICAL CO LTD·Filed 2016·Granted May 9, 2017·13 cites·20 claims
- 1693US11136441B2Polymer film and uses of the sameCHANG CHUN PETROCHEMICAL CO LTD·Filed 2020·Granted Oct 5, 2021·4 cites·18 claims
- 1791US10975181B1Ethylene-vinyl alcohol copolymer and producing method thereofCHANG CHUN PETROCHEMICAL CO LTD·Filed 2020·Granted Apr 13, 2021·2 cites·24 claims
- 1891US10781523B1Electrolytic copper foil and electrode and lithium-ion battery comprising the sameCHANG CHUN PETROCHEMICAL CO LTD·Filed 2020·Granted Sep 22, 2020·2 cites·19 claims
- 1990US10581081B1Copper foil for negative electrode current collector of lithium ion secondary batteryCHANG CHUN PETROCHEMICAL CO LTD·Filed 2019·Granted Mar 3, 2020·1 cites·20 claims
- 2089US10697082B1Surface-treated copper foilCHANG CHUN PETROCHEMICAL CO LTD·Filed 2019·Granted Jun 30, 2020·5 cites·22 claims
- 2189US9673646B1Surface-treated electrolytic copper foil and method for wireless charging of flexible printed circuit boardCHANG CHUN PETROCHEMICAL CO LTD·Filed 2016·Granted Jun 6, 2017·7 cites·21 claims
- 2288US10961375B1Ethylene vinyl alcohol copolymer resin composition as well as films and multi-layer structures thereofCHANG CHUN PETROCHEMICAL CO LTD·Filed 2020·Granted Mar 30, 2021·2 cites·13 claims
- 2388US10676578B1Interlayer film and laminated glass comprising the sameCHANG CHUN PETROCHEMICAL CO LTD·Filed 2019·Granted Jun 9, 2020·2 cites·14 claims
- 2487US9707738B1Copper foil and methods of useCHANG CHUN PETROCHEMICAL CO LTD·Filed 2016·Granted Jul 18, 2017·8 cites·19 claims
- 2585US12305033B2Ethylene-vinyl alcohol copolymer resin particle composition, ethylene-vinyl alcohol copolymer film formed therefrom, and multilayer structureCHANG CHUN PETROCHEMICAL CO LTD·Filed 2022·Granted May 20, 2025·0 cites·16 claims
- 2685US12286527B2Ethylene-vinyl alcohol copolymer resin particle composition, ethylene-vinyl alcohol copolymer film formed therefrom, and multilayer structureCHANG CHUN PETROCHEMICAL CO LTD·Filed 2022·Granted Apr 29, 2025·0 cites·16 claims
- 2785US12252608B2Ethylene-vinyl alcohol copolymer resin particle composition, ethylene-vinyl alcohol copolymer film formed therefrom, and multilayer structureCHANG CHUN PETROCHEMICAL CO LTD·Filed 2022·Granted Mar 18, 2025·0 cites·16 claims
- 2883US11141715B2Method for fabricating heterogeneous nickel-based catalyst on aluminum oxide support, heterogeneous nickel-based catalyst on aluminum oxide support and method for synthesizing polyetheramineCHANG CHUN PETROCHEMICAL CO LTD·Filed 2019·Granted Oct 12, 2021·4 cites·12 claims
- 2983US10991948B1Surface-treated copper foil for lithium-ion secondary batteriesCHANG CHUN PETROCHEMICAL CO LTD·Filed 2020·Granted Apr 27, 2021·1 cites·15 claims
- 3080US11655317B2Ethylene-vinyl alcohol copolymer resin composition, ethylene-vinyl alcohol copolymer film formed therefrom, and multilayer structure containing the sameCHANG CHUN PETROCHEMICAL CO LTD·Filed 2022·Granted May 23, 2023·0 cites·12 claims
- 3180US9709348B2Heat-dissipating copper foil and graphene compositeCHANG CHUN PETROCHEMICAL CO LTD·Filed 2016·Granted Jul 18, 2017·3 cites·24 claims
- 3277US11427663B1Ethylene-vinyl alcohol copolymer resin composition and multi-layer structure comprising thereofCHANG CHUN PETROCHEMICAL CO LTD·Filed 2022·Granted Aug 30, 2022·0 cites·18 claims
- 3376US12053956B2Polymer film and uses of the sameCHANG CHUN PETROCHEMICAL CO LTD·Filed 2023·Granted Aug 6, 2024·0 cites·14 claims
- 3476US11145867B2Surface treated copper foilCHANG CHUN PETROCHEMICAL CO LTD·Filed 2019·Granted Oct 12, 2021·0 cites·14 claims
- 3576US10787751B2Electrolytic copper foil with low profileCHANG CHUN PETROCHEMICAL CO LTD·Filed 2019·Granted Sep 29, 2020·0 cites·20 claims
- 3676US10765010B2Electrolytic copper foil for printed circuit board with low transmission lossCHANG CHUN PETROCHEMICAL CO LTD·Filed 2019·Granted Sep 1, 2020·0 cites·15 claims
- 3775US11283080B2Electrodeposited copper foil, current collector, electrode, and lithium ion secondary battery comprising the sameCHANG CHUN PETROCHEMICAL CO LTD·Filed 2020·Granted Mar 22, 2022·0 cites·30 claims
- 3875US2025300188A1Surface-treated copper foil for lithium ion secondary battery, and current collector and lithium ion secondary batteryCHANG CHUN PETROCHEMICAL CO LTD·Filed 2025·Application pending·0 cites
- 3974US12211990B2Electrolytic copper foil and electrode and lithium-ion cell comprising the sameCHANG CHUN PETROCHEMICAL CO LTD·Filed 2022·Granted Jan 28, 2025·0 cites·20 claims
- 4074US11685824B2Ethylene-vinyl alcohol copolymer resin composition, ethylene-vinyl alcohol copolymer film formed therefrom, and multilayer structure containing the sameCHANG CHUN PETROCHEMICAL CO LTD·Filed 2022·Granted Jun 27, 2023·0 cites·11 claims
- 4174US11643575B2Ethylene-vinyl alcohol copolymer resin composition, ethylene-vinyl alcohol copolymer film formed therefrom, and multilayer structure containing the sameCHANG CHUN PETROCHEMICAL CO LTD·Filed 2022·Granted May 9, 2023·0 cites·14 claims
- 4274US11492718B1Electrodeposited copper foil and copper clad laminateCHANG CHUN PETROCHEMICAL CO LTD·Filed 2022·Granted Nov 8, 2022·0 cites·13 claims
- 4374US10665865B2Copper foil for current collector of lithium secondary battery and negative electrode including the sameCHANG CHUN PETROCHEMICAL CO LTD·Filed 2019·Granted May 26, 2020·0 cites·9 claims
- 4473US11962014B2Copper foil for current collector of lithium secondary batteryCHANG CHUN PETROCHEMICAL CO LTD·Filed 2018·Granted Apr 16, 2024·0 cites·9 claims
- 4572US11362337B2Electrodeposited copper foil and electrode, and lithium-ion secondary battery comprising the sameCHANG CHUN PETROCHEMICAL CO LTD·Filed 2020·Granted Jun 14, 2022·0 cites·18 claims
- 4671US12280565B2Polymer film and uses of the sameCHANG CHUN PETROCHEMICAL CO LTD·Filed 2022·Granted Apr 22, 2025·0 cites·10 claims
- 4771US12280564B2Polymer film and uses of the sameCHANG CHUN PETROCHEMICAL CO LTD·Filed 2022·Granted Apr 22, 2025·0 cites·10 claims
- 4871US11746198B2Polymer film and uses of the sameCHANG CHUN PETROCHEMICAL CO LTD·Filed 2022·Granted Sep 5, 2023·0 cites·12 claims
- 4971US11566091B2Ethylene vinyl alcohol copolymer resin composition, ethylene vinyl alcohol copolymer film formed therefrom, and multilayer structure containing the sameCHANG CHUN PETROCHEMICAL CO LTD·Filed 2022·Granted Jan 31, 2023·0 cites·14 claims
- 5069US11540389B1Surface-treated copper foil and copper clad laminateCHANG CHUN PETROCHEMICAL CO LTD·Filed 2021·Granted Dec 27, 2022·0 cites·11 claims
Showing the top 50 of 87 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when CHANG CHUN PETROCHEMICAL CO LTD files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →