Maintenance fees coming due
Yangtze Memory Technologies Co., Ltd.
231 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Jan 4, 2027. Unpaid by Jul 6, 2027, that one lapses early.
A maintenance fee does not end a patent on its due date. It falls due at 3.5, 7.5
and 11.5 years from grant, and the patent lapses only if the fee is still unpaid at the end of the
six month grace period that follows.
| Patent | Title | Holder | Status | Fee due | Lapses if unpaid | Expires | Confidence |
|---|---|---|---|---|---|---|---|
| US 11,694,752 | Clock Signal Return Scheme for Data Read in Page Buffer of Memory Device In force Fee due Jan 4, 2027 Lapses if unpaid Jul 6, 2027 · High confidence | Yangtze Memory Technologies Co., Ltd. | In force | Jan 4, 2027 | Jul 6, 2027 | High confidence | |
| US 11,694,904 | Substrate Structure, and Fabrication and Packaging Methods Thereof In force Fee due Jan 4, 2027 Lapses if unpaid Jul 6, 2027 · High confidence | Yangtze Memory Technologies Co., Ltd. | In force | Jan 4, 2027 | Jul 6, 2027 | High confidence | |
| US 11,694,918 | Method and Device for Wafer Taping In force Fee due Jan 4, 2027 Lapses if unpaid Jul 6, 2027 · Medium confidence | Yangtze Memory Technologies Co., Ltd. | In force | Jan 4, 2027 | Jul 6, 2027 | Medium confidence | |
| US 11,694,993 | Unified Semiconductor Devices Having Processor and Heterogeneous Memories and Methods for Forming the Same In force Fee due Jan 4, 2027 Lapses if unpaid Jul 6, 2027 · High confidence | Yangtze Memory Technologies Co., Ltd. | In force | Jan 4, 2027 | Jul 6, 2027 | High confidence | |
| US 11,695,000 | Three-Dimensional Memory Devices In force Fee due Jan 4, 2027 Lapses if unpaid Jul 6, 2027 · Medium confidence | Yangtze Memory Technologies Co., Ltd. | In force | Jan 4, 2027 | Jul 6, 2027 | Medium confidence | |
| US 11,696,439 | Staircase Structure in Three-Dimensional Memory Device and Method for Forming the Same In force Fee due Jan 4, 2027 Lapses if unpaid Jul 6, 2027 · High confidence | Yangtze Memory Technologies Co., Ltd. | In force | Jan 4, 2027 | Jul 6, 2027 | High confidence | |
| US 11,696,444 | Semiconductor Device and Method of Fabrication Thereof In force Fee due Jan 4, 2027 Lapses if unpaid Jul 6, 2027 · Medium confidence | Yangtze Memory Technologies Co., Ltd. | In force | Jan 4, 2027 | Jul 6, 2027 | Medium confidence | |
| US 11,699,657 | Three-Dimensional Memory Devices Having a Plurality of NAND Strings Located Between a Substrate and a Single Crystalline Silicon Layer In force Fee due Jan 11, 2027 Lapses if unpaid Jul 12, 2027 · Low confidence | Yangtze Memory Technologies Co., Ltd. | In force | Jan 11, 2027 | Jul 12, 2027 | Low confidence | |
| US 11,699,659 | Staircase Structure in Three-Dimensional Memory Device and Method for Forming the Same In force Fee due Jan 11, 2027 Lapses if unpaid Jul 12, 2027 · High confidence | Yangtze Memory Technologies Co., Ltd. | In force | Jan 11, 2027 | Jul 12, 2027 | High confidence | |
| US 11,699,732 | Method for Forming Memory Device Comprising Bottom-Select-Gate Structure In force Fee due Jan 11, 2027 Lapses if unpaid Jul 12, 2027 · Low confidence | Yangtze Memory Technologies Co., Ltd. | In force | Jan 11, 2027 | Jul 12, 2027 | Low confidence | |
| 221 more maintenance fees coming due in the 12 months from Nov 15, 2026 · Pro | |||||||
10 of 231 patents shown. Soonest fee due date first, then patent number.
Pro members see every patent with a maintenance fee coming due: number, title, status, the due date, and the date it lapses if the fee goes unpaid through the grace period.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.