Monitor the PTAB trial schedule and any related district-court or ITC litigation involving the same patent. A final written decision finding claims unpatentable could remove patent protection for a potentially key product or licensing stream.
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Executive Summary
The PTAB granted institution of IPR2026-00348, allowing AT&T Services, AT&T Mobility, and StreamWide to challenge claims of BK Technologies' patent covering push-to-talk-over-cellular network access management. This is an interlocutory decision — no claims have been cancelled — but it opens a trial that could result in invalidation of the patent, which may be material if the patent protects a core product or licensing revenue for BK Technologies.
PTAB Trial Details
Key Facts
- Institution granted in IPR2026-00348 on October 19, 2026.
- Patent U.S. 11997568 covers a system and method for managing access to a push-to-talk-over-cellular communication network.
- Patent owner: BK Technologies, Inc. (subsidiary of BK Technologies Corp).
- Petitioners: AT&T Services, Inc.; AT&T Mobility LLC; StreamWide Inc.
- Decision is interlocutory — no claims have been cancelled yet.
Financial Impact
Not stated in the decision. The patent's materiality to BK Technologies' revenue is not quantified in the document.
Risk Factors
- If the patent covers a core product, a final invalidation could reduce competitive barriers and licensing revenue.
- The trial outcome is uncertain and may take up to a year to reach a final written decision.
Investment Themes
Documents Analyzed
This report is based on 1 PTAB decision.
| Document | Accession Number |
|---|---|
| PTAB-TRIAL Data (Synthetic) | ptab-IPR2026-00348-ins-BKTI |
Track record builds as more directional reports settle.
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 19, 2026 9d ago | PTAB Trial | $67.16 $71.23 | ▲ +6.06% | ▲ +5.98% | $71.23 (+6.06%) |
Oct 19, 2026 9d ago | PTAB Trial | $67.16 $71.23 | ▲ +6.06% | ▲ +5.98% | $71.23 (+6.06%) |
Oct 13, 2026 14d ago | 8-K | $70.17 $67.16 | ▲ +4.29% | ▲ +3.14% | $71.23 (−1.51%) |
Jun 11, 2026 19w ago | Institutional Cluster | $84.78 $82.56 | ▼ −2.62% | ▼ −3.05% | $71.23 (−15.98%) |
Jun 8, 2026 20w ago | DEFA14A | $79.99 $80.74 | ▲ +0.94% | ▼ −1.47% | $71.23 (−10.95%) |
May 14, 2026 23w ago | 8-K | $84.00 $83.33 | ▼ −0.80% | ▼ −0.08% | $71.23 (−15.20%) |
Apr 23, 2026 26w ago | DEFA14A | $88.62 $90.51 | ▲ +2.13% | ▲ +0.65% | $71.23 (−19.62%) |
US Market Status
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