Patents
US 12225021 B2: Classification scheme for detecting illegitimate account creation
- Granted
- 2025-02-11
- Filed
- 2021-05-17 application 17321847
- Type
- Utility · 18 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A system and method that detects malicious account creation in a web-based platform. A method includes detecting suspicious events associated with an account creation process using a username classifier that evaluates a username used to create a new account, an IP address classifier that evaluates an IP address used to create the new account, and a domain classifier that evaluates a domain from an email address used to create the new account; analyzing each detected suspicious event with a density analysis classifier to determine if each detected suspicious event comprises a malicious event based on a density of detected suspicious events from a collections of account creation processes; and determining an alert condition based on at least one malicious event detection.
Source: PVGPATDIS, file of 2026-04-10 (ipg250211.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Citrix Systems, Inc. 2,209 patents | US company or organization | Fort Lauderdale, FL | CITRIX SYSTEMS INC SEC filer EXACT medium confidence: identical full name, one of each nationally | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Andreas Varnavas | Ρωμανός, GR | 9 | PVGPATDIS, file of 2026-04-10 | |
| Ananthaneni Sai Teja Chowdary | Kanchinakote, IN | 1 | PVGPATDIS, file of 2026-04-10 | |
| Nikolaos Tsapakis | Ρωμανός, GR | 1 | PVGPATDIS, file of 2026-04-10 | |
| Premkumar S J | Kanchinakote, IN | 1 | PVGPATDIS, file of 2026-04-10 | |
| Manikam Muthiah | Kanchinakote, IN | 24 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H04L | Transmission of digital information, e.g. telegraphic communication | H04L63/1416 | PVGPATDIS, file of 2026-04-10 |
| G06F | Electric digital data processing | G06F21/50 | PVGPATDIS, file of 2026-04-10 |
| H04W | Wireless communication networks | H04W12/12 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2025-08-15 | Security interest Security interest Patent security agreement | CLOUD SOFTWARE GROUP, INC. signed 2025-08-14 CITRIX SYSTEMS, INC. signed 2025-08-14 | WILMINGTON TRUST, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT WILMINGTON, DE | 72488/172 | PASDL, file of 2026-10-15 |
| 2024-05-24 | Security interest Security interest Security interest | CLOUD SOFTWARE GROUP, INC. (F/K/A TIBCO SOFTWARE INC.) signed 2024-05-22 CITRIX SYSTEMS, INC. signed 2024-05-22 | WILMINGTON TRUST, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT WILMINGTON, DE | 67662/568 | PASDL, file of 2026-10-15 |
| 2023-04-14 | Security interest Security interest Patent security agreement | CLOUD SOFTWARE GROUP, INC. (F/K/A TIBCO SOFTWARE INC.) signed 2023-04-10 CITRIX SYSTEMS, INC. signed 2023-04-10 | WILMINGTON TRUST, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT WILMINGTON, DE | 63340/164 | PASDL, file of 2026-10-15 |
| 2023-04-14 | Release of security interest Release and reassignment of security interest in patent (reel/frame 062113/0001) | GOLDMAN SACHS BANK USA, AS COLLATERAL AGENT signed 2023-04-10 | CITRIX SYSTEMS, INC. FORT LAUDERDALE, FL CLOUD SOFTWARE GROUP, INC. (F/K/A TIBCO SOFTWARE INC.) FORT LAUDERDALE, FL | 63339/525 | PASDL, file of 2026-10-15 |
| 2022-10-07 | Security interest Security interest Patent security agreement | TIBCO SOFTWARE INC. signed 2022-09-30 CITRIX SYSTEMS, INC. signed 2022-09-30 | WILMINGTON TRUST, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT WILMINGTON, DE | 62113/470 | PASDL, file of 2026-10-15 |
| 2022-10-07 | Security interest Security interest Second lien patent security agreement | TIBCO SOFTWARE INC. signed 2022-09-30 CITRIX SYSTEMS, INC. signed 2022-09-30 | GOLDMAN SACHS BANK USA, AS COLLATERAL AGENT NEW YORK, NY | 62113/1 | PASDL, file of 2026-10-15 |
| 2022-10-07 | Security interest Security interest Patent security agreement | TIBCO SOFTWARE INC. signed 2022-09-30 CITRIX SYSTEMS, INC. signed 2022-09-30 | BANK OF AMERICA, N.A., AS COLLATERAL AGENT CHARLOTTE, NC | 62112/262 | PASDL, file of 2026-10-15 |
| 2022-09-30 | Security interest Security interest Security interest | CITRIX SYSTEMS, INC. signed 2022-09-30 | WILMINGTON TRUST, NATIONAL ASSOCIATION WILMINGTON, DE | 62079/1 | PASDL, file of 2026-10-15 |
| 2021-05-24 | Correction Corrective assignment to correct the second inventor's name previously recorded at reel: 056260 frame: 0188. assignor(s) hereby confirms the assignment . | SAI TEJA CHOWDARY, ANANTHANENI signed 2021-04-19 TSAPAKIS, NIKOLAOS signed 2021-04-19 VARNAVAS, ANDREAS signed 2021-04-19 MUTHIAH, MANIKAM signed 2021-04-20 SJ, PREMKUMAR signed 2021-04-20 | CITRIX SYSTEMS, INC. FORT LAUDERDALE, FL | 56350/368 | ECORSEXC, file of 2026-09-25 |
| 2021-05-17 | Assignment Assignment of assignor's interest | SAI TEJA CHOWDARY, ANATHANENI signed 2021-04-19 TSAPAKIS, NIKOLAOS signed 2021-04-19 VARNAVAS, ANDREAS signed 2021-04-19 MUTHIAH, MANIKAM signed 2021-04-20 SJ, PREMKUMAR signed 2021-04-20 | CITRIX SYSTEMS, INC. FORT LAUDERDALE, FL | 56260/188 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.