Abuse detection for phone number lookups
US9819793B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2017 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | Feb 27, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W8/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for rate-limiting phone number lookups. An account look-up application receives an address book of a first user, the address book including a phone number that belongs to a second user, creates a phone edge by associating the phone number in the address book with an account of the second user, receives a request including the phone number from the first user for obtaining the account associated with the phone number, determines an edge cost associated with the phone edge for the first user, determines whether to provide the phone edge to the first user based on the edge cost, and provides the phone edge to the first user responsive to a positive determination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.