Maintenance fees coming due
9 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Dec 6, 2026. Unpaid by Jun 7, 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 11,669,521 | Accelerated Filtering, Grouping and Aggregation in a Database System In force Fee due Dec 6, 2026 Lapses if unpaid Jun 7, 2027 · High confidence | Singlestore, Inc. | In force | Dec 6, 2026 | Jun 7, 2027 | High confidence | |
| US 9,135,310 | Query Routing in a Distributed Database System In force Fee due Mar 15, 2027 Lapses if unpaid Sep 15, 2027 · High confidence | Singlestore, Inc. | In force | Mar 15, 2027 | Sep 15, 2027 | High confidence | |
| US 9,141,678 | Distributed Query Cache in a Database System In force Fee due Mar 22, 2027 Lapses if unpaid Sep 22, 2027 · High confidence | Singlestore, Inc. | In force | Mar 22, 2027 | Sep 22, 2027 | High confidence | |
| US 9,223,805 | Durability Implementation Plan in an In-Memory Database System In force Fee due Jun 29, 2027 Lapses if unpaid Dec 29, 2027 · High confidence | Singlestore, Inc. | In force | Jun 29, 2027 | Dec 29, 2027 | High confidence | |
| US 11,886,407 | Method of Performing Transactional and Analytical Data Processing Using a Data Structure In force Fee due Jul 30, 2027 Lapses if unpaid Jan 31, 2028 · High confidence | Singlestore, Inc. | In force | Jul 30, 2027 | Jan 31, 2028 | High confidence | |
| US 10,620,925 | Code Generation for Queries in a Database System In force Fee due Oct 14, 2027 Lapses if unpaid Apr 14, 2028 · High confidence | Singlestore, Inc. | In force | Oct 14, 2027 | Apr 14, 2028 | High confidence | |
| US 9,317,552 | Reusing Existing Query Plans in a Database System In force Fee due Oct 19, 2027 Lapses if unpaid Apr 19, 2028 · High confidence | Singlestore, Inc. | In force | Oct 19, 2027 | Apr 19, 2028 | High confidence | |
| US 10,642,589 | Extensibility in a Database System In force Fee due Nov 5, 2027 Lapses if unpaid May 5, 2028 · High confidence | Singlestore, Inc. | In force | Nov 5, 2027 | May 5, 2028 | High confidence | |
| US 11,977,538 | Durable Functions in Database Systems In force Fee due Nov 7, 2027 Lapses if unpaid May 8, 2028 · High confidence | Singlestore, Inc. | In force | Nov 7, 2027 | May 8, 2028 | High confidence |
9 of 9 patents shown. Soonest fee due date first, then patent number.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.