Sumika Electronic Materials

Also on record

Records under this name other than the patents Sumika Electronic Materials holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned. None of them is counted in the 2 patents it holds.

Showing 1 to 8 of 8 · Back to Sumika Electronic Materials

Patent	Title	Status	Expires	Confidence
US 6,828,383	Phenolic modified resorcinolic resins for rubber compounding Term ended Term ended Feb 18, 2023 · From the USPTO record	Term ended	Term ended Feb 18, 2023	From the USPTO record
US 7,705,088	Resorcinol-blocked isocyanate compositions and their applications Lapsed on the fee record Ended Apr 27, 2022 · From the USPTO record	Lapsed on the fee record	Ended Apr 27, 2022	From the USPTO record
US 7,700,687	Resorcinol resin-blocked isocyanates and their applications Lapsed on the fee record Ended Apr 20, 2022 · From the USPTO record	Lapsed on the fee record	Ended Apr 20, 2022	From the USPTO record
US 6,472,457	Nonformaldehyde, nonfuming resorcinolic resins and methods of making and using the same Term ended Term ended Jan 8, 2021 · From the USPTO record	Term ended	Term ended Jan 8, 2021	From the USPTO record
US RE42,100	Resorcinolic derivative for rubber compounds Term ended Term ended Dec 21, 2020 · From the USPTO record	Term ended	Term ended Dec 21, 2020	From the USPTO record
US 7,397,062	Heterojunction bipolar transistor with improved current gain Lapsed on the fee record Ended Jul 8, 2020 · From the USPTO record	Lapsed on the fee record	Ended Jul 8, 2020	From the USPTO record
US 5,936,056	Non-volatile resorcinolic resins and methods of making and using the same Term ended Term ended no later than Aug 10, 2019 · Low confidence	Term ended	Term ended no later than Aug 10, 2019	Low confidence
US 5,945,500	Non-volatile resorcinolic resins and methods of making and using the same Term ended Term ended no later than Aug 31, 2019 · Low confidence	Term ended	Term ended no later than Aug 31, 2019	Low confidence