Assignment history

Inventors

The sole inventor listed for US Patent 12250564 is Sai C. Manapragada. At the time of filing, Sai C. Manapragada was associated with Xifi Networks R and D Inc., as indicated by the assignment of the inventor's interest to the company on the same day the application was filed.

Original assignee

The entity named on the issued patent, and the original assignee, is Xifi Networks R and D Inc. According to the patent text, their primary line of business appears to be in wireless networking systems, specifically for processing bandwidth-intensive data streams using virtual MAC and PHY layers, and for extending the range and coverage of wireless networks. The patent itself describes "Method and apparatus for processing bandwidth intensive data streams using virtual media access control and physical layers" and implies the development of "wireless access points, base stations, handhelds, tablets, computers, telephones, televisions, DVD players, BluRay players, media players, storage devices, or any such devices that use wireless networks to send and receive data including stand-alone add-on devices such as “dongles” that serve as wireless interfaces between devices".

Their current status is operating, as they are the current assignee and are involved in ongoing litigation related to this patent.

Assignment timeline

• 2024-03-29 (executed) / recorded 2024-04-24 — Reel 062638/0879
  • Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST
  • Assignor: MANAPRAGADA, SAI C., MR.
  • Assignee: XIFI NETWORKS R&D INC.
  • Correspondent: RICHARD J. BEEM, 1420 NW GILMAN BLVD. SUITE 2, ISSAQUAH, WA 98027
  • Context: Inventor assigned patent rights to the company.

The USPTO Assignment Center search for patent number US12250564 only returned one record, which is the assignment from the inventor to Xifi Networks R&D Inc. This indicates no further recorded post-issuance assignments.

Timeline diagram

timeline
    title Ownership of US 12250564
    2024 : Filed by Xifi Networks R and D Inc
         : Inventor assigned to Xifi Networks R&D Inc
    2025 : Issued

NPE / troll-pattern signals

1. Shell-entity transfer — Not present. The only recorded assignment is from the inventor to Xifi Networks R&D Inc., which is the original and current assignee. There is no transfer to an entity with typical shell-entity naming conventions or addresses.

2. Known asserter in the chain — Unclear. Xifi Networks R and D Inc. is not a commonly listed known NPE. However, the patent is currently involved in litigation, including a PTAB case (PGR2025-00069) filed by Unified Patents (a defensive aggregator, but acting as a petitioner against the patent owner here) and a US case in the Texas Eastern District Court (2:24-cv-01057). This indicates assertion by Xifi Networks R and D Inc., but does not definitively classify them as a "known asserter" in the traditional NPE sense without further information on their business model or prior assertions.

3. Repeat correspondent across the chain — Not present. There is only one assignment recorded, so no recurring correspondent can be identified across a chain. The correspondent for the inventor assignment is Richard J. Beem.

4. Cascading transfers — Not present. Only one assignment from the inventor to the original assignee is recorded.

5. Pre-litigation transfer — Not present. The only assignment (from inventor to company) occurred before the patent was granted and well before any noted litigation. The patent was granted on March 11, 2025, and the US litigation case (2:24-cv-01057) was filed in Texas Eastern District Court. Assuming the case number format "2:24-cv-01057" means it was filed in 2024, the inventor assignment (executed 2024-03-29, recorded 2024-04-24) predates this, but the patent itself was not granted until March 11, 2025. It's more likely the litigation started after issuance or close to it. Even so, the initial assignment is not a "pre-litigation transfer" in the context of setting up assertion, as it's a standard inventor-to-company transfer.

6. Bankruptcy fire-sale — Not present. No information suggests Xifi Networks R and D Inc. has undergone bankruptcy.

7. Privateering — Unclear. There is no available public information or SEC filings that clearly indicate Xifi Networks R and D Inc. is operating on behalf of another company for assertion purposes.

8. Defensive aggregator (anti-NPE) — Not present. The chain does not terminate at a known defensive aggregator. Unified Patents is involved in a PTAB case against the patent, indicating they are challenging the patent, not holding it defensively.

Verdict

Operating-company assertion

While there is ongoing litigation, the available records show a direct assignment from the inventor to Xifi Networks R and D Inc., which is also the original and current assignee. There are no recorded transfers to shell entities or known NPEs, nor any other strong signals of NPE activity in the assignment chain. The litigation against the patent suggests Xifi Networks R and D Inc. is actively asserting its patent rights, consistent with an operating company protecting its intellectual property.

USPTO Assignment Center search for US12250564: https://assignmentcenter.uspto.gov/