Yubico patented technology is utilized in its products as indicated below. This page serves as notice under 35 U.S.C. § 287(a).  All patents below have been issued by the United States Patent & Trademark Office.

YubiKey 5 Series

• YubiKey 5 NFC: 8,739,277; 8,806,586; 9,122,860 (RE48,541); 9,954,578; 10,177,816; 10,579,839; and patent pending 
• YubiKey 5C: D884,649; 8,739,277; 8,806,586; 9,122,860 (RE48,541); 10,374,354; and patent pending
• YubiKey 5 Nano: D771,042; 8,739,277; 8,806,586; 9,122,860 (RE48,541); and patent pending
• YubiKey 5C Nano: D883,937; D884,649; 8,739,277; 8,806,586; 9,122,860 (RE48,541); 10,374,354; and patent pending
• YubiKey 5Ci: D846,557; D884,649; 8,739,277; 8,806,586; 9,122,860 (RE48,541); 10,374,354; and patent pending

YubiKey FIPS Series

• YubiKey FIPS: 8,739,277; 8,806,586; 9,122,860 (RE48,541); and patent pending
• YubiKey C FIPS: D884,649; 8,739,277; 8,806,586; 9,122,860 (RE48,541); 10,374,354; and patent pending
• YubiKey Nano FIPS: D771,042; 8,739,277; 8,806,586; 9,122,860 (RE48,541); and patent pending
• YubiKey C Nano FIPS: D883,937; D884,649; 8,739,277; 8,806,586; 9,122,860 (RE48,541); 10,374,354; and patent pending.

Security Key Series

• Security Key NFC by Yubico: 10,579,839; and patent pending

YubiKey Bio Series

• YubiKey Bio – FIDO Edition: D928,732; and patent pending
• YubiKey C Bio – FIDO Edition: D884,649; D928,732; 10,374,354; and patent pending