CPC Subgroup Additional Only
G06F 2221/21 Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
Full Title
Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity > Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
27 direct subcodes
Child Classifications
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- G06F 2221/2101 Auditing as a secondary aspect
- G06F 2221/2103 Challenge-response
- G06F 2221/2105 Dual mode as a secondary aspect
- G06F 2221/2107 File encryption
- G06F 2221/2109 Game systems
- G06F 2221/2111 Location-sensitive, e.g. geographical location, GPS
- G06F 2221/2113 Multi-level security, e.g. mandatory access control
- G06F 2221/2115 Third party
- G06F 2221/2117 User registration
- G06F 2221/2119 Authenticating web pages, e.g. with suspicious links
- G06F 2221/2121 Chip on media, e.g. a disk or tape with a chip embedded in its case
- G06F 2221/2123 Dummy operation
- G06F 2221/2125 Just-in-time application of countermeasures, e.g., on-the-fly decryption, just-in-time obfuscation or de-obfuscation
- G06F 2221/2127 Bluffing
- G06F 2221/2129 Authenticate client device independently of the user
- G06F 2221/2131 Lost password, e.g. recovery of lost or forgotten passwords
- G06F 2221/2133 Verifying human interaction, e.g., Captcha
- G06F 2221/2135 Metering
- G06F 2221/2137 Time limited access, e.g. to a computer or data
- G06F 2221/2139 Recurrent verification
Top Applicants
Top 10 applicants by patent filingsfor class G06, 2013–2023, worldwide · Source: EPO PATSTAT
- SAMSUNG ELECTRONICS COMPANY KR 76,952
- IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 62,841
- MICROSOFT TECHNOLOGY LICENSING US 44,778
- GOOGLE US 35,735
- INTEL CORPORATION US 32,087
- HUAWEI TECHNOLOGIES COMPANY CN 30,572
- TENCENT TECHNOLOGY (SHENZHEN) COMPANY 25,023
- APPLE US 23,482
- SGCC(STATE GRID CORPORATION OF CHINA) 22,548
- HUAWEI TECHNOLOGIES COMPANY 20,917