DUO
Live / Registered — Registered and renewed (as of 24 Aug 2026)
What this means for you
Registered since 05 Jul 2016. The owner can stop confusingly similar uses in the classes it covers; it stays on the register as long as the owner keeps up the maintenance filings (next due by 05 Jul 2026).
Record
- Serial number
- 86711165
- Registration number
- 4991621
- Mark type
- Stylized text
- Filed
- 31 Jul 2015
- Published for opposition
- 19 Apr 2016
- Registered
- 05 Jul 2016
- Next maintenance due
- 05 Jul 2026
- Attorney of record
- Mark A. Jansen
Goods and services
- Class 042 — Scientific and technological services: Software as a service (SAAS) services, namely, hosting software for use by others for data security purposes by providing authentication
- Class 045 — Legal and security services: Computer security services in the nature of providing user authentication for data security
Owner
- CISCO TECHNOLOGY, INC., SAN JOSE, CA, US
- DUO SECURITY LLC, SAN JOSE, CA, US
- Duo Security, Inc., Ann Arbor, MI, US
- Duo Security, Inc., Ann Arbor, MI, US
- Duo Security, Inc., Ann Arbor, MI, US
Prosecution history
- 24 Aug 2026 — NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
- 24 Aug 2026 — REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)
- 24 Aug 2026 — REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
- 24 Aug 2026 — CASE ASSIGNED TO POST REGISTRATION PARALEGAL
- 30 Jun 2026 — TEAS SECTION 8 & 9 RECEIVED
- 05 Jul 2025 — COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
- 18 Jan 2023 — ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
- 16 Jan 2023 — NOTICE OF ACCEPTANCE OF SEC. 8 & 15 - E-MAILED
- 16 Jan 2023 — REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.
- 14 Jan 2023 — CASE ASSIGNED TO POST REGISTRATION PARALEGAL
- 27 Jul 2022 — AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
- 13 Jul 2022 — AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
- 29 Jun 2022 — TEAS SECTION 8 & 15 RECEIVED
- 10 May 2022 — TEAS CHANGE OF CORRESPONDENCE RECEIVED
- 10 May 2022 — TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS