Assignment history

Inventors

• Sai C. Manapragada: At the time of filing, Sai C. Manapragada appears to have been associated with Xifi Networks R and D Inc, as the patent was assigned from the inventor to this entity shortly before its publication. The patent itself lists Xifi Networks R and D Inc as the current assignee and original assignee.

Original assignee

The entity named on the issued patent as the original assignee is Xifi Networks R and D Inc.

• Shipped product embodying the claims: Yes. Xifi Networks R and D Inc is a wireless technology, product, and solutions company. They have developed and patented innovative technology for WiFi broadband internet access, particularly in India, in line with the PM-WANI framework. They offer products such as XSTUMP™ AC3800 and XTEND™ AC3800 and have a user application available on app stores.
• Primary line of business: Xifi Networks R and D Inc's primary line of business is providing wireless technology, products, and solutions for large-scale deployments of Wi-Fi hotspots, with a focus on enhancing wireless performance (capacity, coverage, speed) using patented software-driven intellectual property and open-standards compliant hardware.
• Current status: Operating. The company has a presence in the US, India, and Singapore and is actively engaged in developing and commercializing its technology. It is also currently involved in patent litigation.

Assignment timeline

• 2023-07-27 (executed) / recorded 2023-08-02 — Reel 006403/0369
  • Conveyance: ASSIGNMENT
  • Assignor: MANAPRAGADA, SAI C.
  • Assignee: XIFI NETWORKS R & D INC.
  • Correspondent: ROBERT E. ROSENBERG, LAW OFFICE OF ROBERT ROSENBERG, PO BOX 1290, LA JOLLA, CA 92038-1290. This correspondent appears for the only assignment of record for this patent.
  • Context: Inventor assigned patent rights to the company.

The USPTO Assignment Center search for US11818591 returned only one record, indicating no further recorded assignments for this specific patent number.

Timeline diagram

timeline
    title Ownership of US 11818591
    2021 : Filed by Xifi Networks R and D Inc
    2023 : Inventor assigned to Xifi Networks R&D Inc
         : Patent issued
    2024 : First infringement suit filed
    2025 : PTAB case instituted

NPE / troll-pattern signals

1. Shell-entity transfer — Not present. The only recorded assignment is from the inventor to Xifi Networks R and D Inc, which is an operating company actively involved in developing and deploying wireless network solutions.
2. Known asserter in the chain — Unclear. While Xifi Networks R and D Inc is currently asserting this patent in litigation against Samsung, it also appears to be an operating company with products and services. Whether it primarily functions as an NPE or an operating company that asserts its patents as part of its business strategy is not definitively established from the provided information alone.
3. Repeat correspondent across the chain — Not present. Only one assignment record is available for this specific patent, and therefore, no recurrence of a correspondent can be observed across a chain.
4. Cascading transfers — Not present. There is only one recorded assignment from the inventor to the assignee.
5. Pre-litigation transfer — Not present. The assignment from the inventor to Xifi Networks R & D Inc was executed on July 27, 2023, and recorded on August 2, 2023 (Reel 006403/0369). The first infringement suit naming this patent was filed on December 17, 2024. This gap is greater than 6 months.
6. Bankruptcy fire-sale — Not present. There is no indication in the assignment records or company information that Xifi Networks R and D Inc has filed for bankruptcy.
7. Privateering — Unclear. There is no publicly available information in the provided context (SEC filings, Patent Progress/EFF coverage) to suggest that Xifi Networks R and D Inc is asserting this patent on behalf of another operating company.
8. Defensive aggregator (anti-NPE) — Not present. The patent is currently being asserted by Xifi Networks R and D Inc, and there is no record of it being assigned to a defensive aggregator.

Verdict

Operating-company assertion

Xifi Networks R and D Inc appears to be an operating company that develops and markets wireless technology products and solutions, including XSTUMP™ AC3800 and XTEND™ AC3800. The only recorded assignment for US11818591 is from the inventor, Sai C. Manapragada, to Xifi Networks R and D Inc on July 27, 2023 (Reel 006403/0369). The company is actively involved in deploying WiFi hotspots and offers a user application. While it is currently involved in patent litigation, the evidence suggests it is asserting its own intellectual property as an operating entity.

Verification can be done via the USPTO Patent Assignment Search portal by searching for patent number US11818591 at https://assignmentcenter.uspto.gov/.