Certicom Corp.
346Patents
263Active
346Granted
55Portfolio score
Filing activity: Apr 21, 1995 → Jun 21, 2019 · 82 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6141420A | Elliptic curve encryption systems | Electricity | 137 | Expired |
| US5761305A | Key agreement and transport protocol with implicit signatures | Emerging Cross-Sectional Technologies | 120 | Expired |
| US5955717A | Transaction verification protocol for Smart Cards | Physics | 119 | Expired |
| US8631247B2 | System and method for hardware based security | Electricity | 108 | Active |
| US5889865A | Key agreement and transport protocol with implicit signatures | Electricity | 103 | Expired |
| US6078667A | Generating unique and unpredictable values | Electricity | 75 | Expired |
| US6618483B1 | Elliptic curve encryption systems | Electricity | 73 | Expired |
| US6122736A | Key agreement and transport protocol with implicit signatures | Emerging Cross-Sectional Technologies | 73 | Expired |
| US6134325A | Key transmission system | Electricity | 67 | Expired |
| US6049815A | Method and apparatus for finite field multiplication | Physics | 63 | Expired |
| US6446207B1 | Verification protocol | Electricity | 63 | Expired |
| US6792530B1 | Implicit certificate scheme | Electricity | 59 | Expired |
| US5896455A | Key agreement and transport protocol with implicit signatures | Electricity | 58 | Expired |
| US6178507A | Data card verification system | Electricity | 57 | Expired |
| US5933504A | Strengthened public key protocol | Physics | 53 | Expired |
| US6349318B1 | Arithmetic processor for finite field and module integer arithmetic operations | Physics | 52 | Expired |
| US7516325B2 | Device authentication in a PKI | Electricity | 52 | Expired |
| US6195433A | Private key validity and validation | Electricity | 50 | Expired |
| US6785813B1 | Key agreement and transport protocol with implicit signatures | Physics | 47 | Expired |
| US6704870B2 | Digital signatures on a Smartcard | Electricity | 46 | Expired |
| US8634559B2 | Aggregate signature schemes | Electricity | 46 | Active |
| US6738478B1 | Power signature attack resistant cryptography | Physics | 46 | Expired |
| US8948386B2 | Authentication of a mobile device by a network and key generation | Electricity | 44 | Active |
| US5999626A | Digital signatures on a smartcard | Electricity | 43 | Expired |
| US6230179A | Finite field multiplier with intrinsic modular reduction | Physics | 40 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.