H04L 9/0836
Using tree structure or hierarchical structure
Official title: {using tree structure or hierarchical structure}
H04L9/0836 (Using tree structure or hierarchical structure) appears on 635 US grants and 690 published applications in this corpus.
Search patents in H04L- Granted patents
- 635
- Published applications
- 690
- Assignees
- 256
- Inventors
- 1,193
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 7 | 0 |
| 2002 | 0 | 16 |
| 2003 | 1 | 22 |
| 2004 | 4 | 21 |
| 2005 | 8 | 37 |
| 2006 | 16 | 36 |
| 2007 | 18 | 27 |
| 2008 | 34 | 43 |
| 2009 | 32 | 43 |
| 2010 | 34 | 30 |
| 2011 | 27 | 21 |
| 2012 | 31 | 23 |
| 2013 | 27 | 19 |
| 2014 | 34 | 17 |
| 2015 | 22 | 16 |
| 2016 | 15 | 16 |
| 2017 | 22 | 31 |
| 2018 | 24 | 22 |
| 2019 | 38 | 33 |
| 2020 | 38 | 35 |
| 2021 | 34 | 36 |
| 2022 | 31 | 47 |
| 2023 | 31 | 39 |
| 2024 | 33 | 20 |
| 2025 | 38 | 26 |
| 2026 | 15 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Query information processing method for fully homomorphic encrypted database using plaintext index and computing device for performing the same6 Oct 2026US 12,755,048 B2Supergate Co., Ltd.
- Method, apparatus, and system for training tree model6 Oct 2026US 12,756,541 B2Huawei Technologies Co., Ltd.
- Partitioning mechanism for parallel processing in delta generation29 Sep 2026US 12,748,731 B2Oracle International Corporation
- Computer implemented systems and methods for storing, retrieving and communication data via a peer-to-peer network29 Sep 2026US 12,750,239 B2nChain Licensing AG
- Securing group updates over hypertext transfer protocol29 Sep 2026US 12,750,352 B2Sentriqs, Inc.
- Hierarchical key management system6 Aug 2026US 2026/0230307 A1Okta, Inc.
- Method and apparatus for secure management of data30 Jul 2026US 2026/0222177 A1
- Techniques for maintaining file consistency during file system cross-region replication11 Jun 2026US 2026/0161608 A1Oracle International Corporation
- Hierarchical key management for cross-region replication11 Jun 2026US 2026/0161609 A1Oracle International Corporation
- Methods of Networking Devices11 Jun 2026US 2026/0163721 A1Nokia Solutions and Networks Oy
Most cited
By later US patents
- Method and apparatus for collaborative document control448US 5,787,175 ANovell, Inc. · 1998
- Method and apparatus for creating a secure communication channel among multiple event service nodes305US 7,013,389 B1Cisco Technology, Inc. · 2006
- Key generation for hierarchical data access283US 9,215,076 B1Amazon Technologies, Inc. · 2015
- Method of dispatching secret keys to security modules and user cards in a data processing network271US 4,910,773 ACii Honeywell Bull (Societe Anonyme) · 1990
- Hierarchical key management encoding and decoding215US 6,907,127 B1Digital Video Express, L.P. · 2005