AT&T Services Inc.
Ex parte reexamination requester·10 ex parte reexams
AT&T Services Inc. has requested 10 USPTO ex parte reexaminations, with 4 currently open. It most often challenges patents owned by ASUS Technology Licensing Inc., Innovative Sonic Limited, and Cornell Research Foundation, Inc.. ExamPat indexes the full prosecution record for each proceeding, including office-action grounds, certificate outcomes, and downstream PTAB and Federal Circuit decisions.
Filings by year
Top patent owners challenged
Outcome track record
How this requester's challenges resolve: claims confirmed, amended, mixed, or fully canceled.
- Certificate outcome split across every bucket
- Share of challenges that canceled claims
Challenge metrics
Cancellation rate, average pendency, and the open/closed split across every reexam this requester has filed.
- Outcome rate of closed challenges
- Average pendency in months
Examiners & defense counsel
Which examiners decide this requester's challenges, and which firms defend the targeted patents.
- Most frequent examiners
- Top opposing counsel
Recent reexaminations (10)
| Control # | Filed | Patent | Title | Owner | Status |
|---|---|---|---|---|---|
| 90/015,966 | Feb 17, 2026 | RE47,720 | SPECTRUM-ADAPTIVE NETWORKING | USTA Technology, LLC | Open |
| 90/015,584 | Oct 7, 2025 | 7,965,733 | SYSTEMS AND METHODS TO DETECT AND AVOID COLLISIONS IN CHANNEL SENSE MULTIPLE ACCESS COMMUNICATIONS WITH MULTIPACKET RECEPTION | Cornell Research Foundation, Inc. | Open |
| 90/015,585 | Oct 7, 2025 | 7,839,775 | METHODS AND SYSTEMS FOR CHANNEL SENSING MULTIPLE ACCESS COMMUNICATIONS WITH MULTIPACKET RECEPTION | Cornell Research Foundation, Inc. | Open |
| 90/015,410 | Jul 26, 2025 | 7,664,059 | ERROR HANDLING IN A WIRELESS COMMUNICATIONS SYSTEM | Innovative Sonic Limited | Closed |
| 90/019,986 | Jun 4, 2025 | 9,237,489 | METHOD AND APPARATUS FOR SECONDARY CELL RELEASE DURING HANDOVER IN A WIRELESS COMMUNICATION SYSTEM | Innovative Sonic Limited | Closed |
| 90/019,975 | May 29, 2025 | 10,148,402 | METHOD AND APPARATUS FOR BEAM MANAGEMENT IN A WIRELESS COMMUNICATION SYSTEM | ASUS Technology Licensing Inc. | Closed |
| 90/019,972 | May 28, 2025 | 10,887,868 | METHOD AND APPARATUS FOR TRANSMISSION OR RECEPTION USING BEAMFORMING IN A WIRELESS COMMUNICATION SYSTEM | ASUS Technology Licensing Inc. | Closed |
| 90/019,970 | May 22, 2025 | 9,560,559 | METHOD AND APPARATUS FOR IMPLEMENTING SMALL CELL ENHANCEMENTS IN A WIRELESS COMMUNICATION SYSTEM | Innovative Sonic Limited | Open |
| 90/019,902 | Apr 4, 2025 | 10,798,754 | METHOD AND APPARATUS FOR SERVING QUALITY OF SERVICE (QOS) FLOW IN A WIRELESS COMMUNICATION SYSTEM | ASUS Technology Licensing Inc. | Closed |
| 90/019,900 | Apr 3, 2025 | 10,951,359 | METHOD AND APPARATUS FOR PROVIDING CONTROL RESOURCE SET CONFIGURATION IN A WIRELESS COMMUNICATION SYSTEM | ASUS Technology Licensing Inc. | Closed |
See the full reexam picture for AT&T Services Inc.
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.