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Chang patent opposition analysis

Get complete Patent Opposition Report for Chang

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Latest patents of Chang opposed by its competitors

Explore Chang's recently opposed patents, revealing key competitive challenges and strategic patent disputes in the industry. Track oppositions filed by competitors to understand technology battlegrounds and assess potential risks.

Patent Number	Grant Date	Title	Total Oppositions
EP3538693	Feb 21, 2024	Bio-Based Meg And Polyester Fiber Compositions And Methods Of Making The Same	2
EP3269832	Oct 19, 2022	Method Of Recycling And Processing Waste Battery	1
EP3660949	Jun 1, 2022	Power Tool System And Battery Pack Thereof	1
EP3231913	Sep 4, 2019	Machine Head Transmission Device Of Warp Knitting Machine	2
EP2950816	Jul 31, 2019	The Use Of Dna Sequences Encoding An Interferon As Vaccine Adjuvants	1
EP3231914	May 15, 2019	Crankshaft And Connecting Rod Mechanism Of Needle Bed Of Warp Knitting Machine With Single Needle Bed	2
EP3231915	Apr 10, 2019	Sinker Crankshaft And Connecting Rod Mechanism Of Warp Knitting Machine With Single Needle Bed	2
EP3050905	Nov 22, 2017	Polyvinyl Alcohol And Purification Method Thereof	1

Top competitors of Chang

KARL MAYER R&D

GREEN FRIX

KELTIE