G11C 2211/401
Indexing scheme relating to cells needing refreshing or charge regeneration, i.e. dynamic
Official title: Indexing scheme relating to cells needing refreshing or charge regeneration, i.e. dynamic cells
G11C2211/401 (Indexing scheme relating to cells needing refreshing or charge regeneration, i.e. dynamic) appears on 1,933 US grants and 2,040 published applications in this corpus.
Search patents in G11C- Granted patents
- 1,933
- Published applications
- 2,040
- Assignees
- 246
- Inventors
- 1,867
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 7 | 0 |
| 2001 | 7 | 10 |
| 2002 | 15 | 22 |
| 2003 | 22 | 42 |
| 2004 | 42 | 93 |
| 2005 | 76 | 129 |
| 2006 | 95 | 134 |
| 2007 | 129 | 142 |
| 2008 | 105 | 104 |
| 2009 | 108 | 122 |
| 2010 | 105 | 108 |
| 2011 | 110 | 85 |
| 2012 | 85 | 66 |
| 2013 | 85 | 69 |
| 2014 | 71 | 82 |
| 2015 | 80 | 70 |
| 2016 | 83 | 72 |
| 2017 | 79 | 77 |
| 2018 | 69 | 61 |
| 2019 | 86 | 94 |
| 2020 | 86 | 87 |
| 2021 | 77 | 79 |
| 2022 | 59 | 70 |
| 2023 | 66 | 87 |
| 2024 | 80 | 65 |
| 2025 | 68 | 42 |
| 2026 | 19 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Memory apparatus, refresh control circuit and row hammer refresh method1 Sep 2026US 12,725,648 B2Winbond Electronics Corp.
- Storage circuit with gain-cell and self-refresh unit connected between gain-cell and latch circuit25 Aug 2026US 12,718,863 B2National Tsing Hua University
- Memory device architecture using multiple physical cells per bit to improve read margin and to alleviate the need for managing demarcation read voltages4 Aug 2026US 12,700,448 B2Micron Technology, Inc.
- Maintenance operations in a DRAM30 Jun 2026US 12,669,945 B2Rambus Inc.
- Semiconductor device having electrically floating body transistor, semiconductor device having both volatile and non-volatile functionality and method of operating23 Jun 2026US 12,665,024 B2Zeno Semiconductor, Inc.
- Memory device with improved sensing margin and leakage immunity24 Sep 2026US 2026/0293078 A1Synopsys, Inc.
- Semiconductor memory device-directed error check and scrub17 Sep 2026US 2026/0277742 A1Micron Technology, Inc.
- Memory device having hidden refresh13 Aug 2026US 2026/0236165 A1Rambus Inc.
- Semiconductor device6 Aug 2026US 2026/0229269 A1Semiconductor Energy Laboratory Co.Ltd.
- Memory device performing refresh operation and operating method thereof6 Aug 2026US 2026/0229272 A1SK hynix Inc.
Most cited
By later US patents
- Data storage device and refreshing method for use with such device605US 7,170,807 B2Innovative Silicon S.A. · 2007
- Digit line comparison circuits429US 8,279,683 B2Micron Technology, Inc. · 2012
- Read circuitry for an integrated circuit having memory cells and/or a memory cell array, and method of operating same426US 7,957,206 B2Micron Technology, Inc. · 2011
- Semiconductor signal processing device422US 8,274,841 B2Renesas Electronics Corporation · 2012
- Method of maintaining the state of semiconductor memory having electrically floating body transistor362US 8,130,547 B2Zeno Semiconductor, Inc. · 2012