Assignment history

Inventors

• Francis daCosta (Mesh Dynamics Inc)
• Sriram Dayanandan (Mesh Dynamics Inc)

Original assignee

The original assignee is Mesh Dynamics Inc. [cite: 2025-08-12 / 2025-08-12 Reel 071994/0991]. Mesh Dynamics Inc. delivered third-generation wireless mesh networking solutions for high-performance outdoor data, voice, and video networking. They shipped products embodying the claims, specifically MD4000 family of Structured Mesh™ wireless nodes, which support low-latency and low-jitter performance over multi-hop topologies, often used in industrial, mining, military, and municipal applications.. Software development began in 2001 with United States Defense contracts, and production shipments began in 2005.. The company's core expertise is in mission-critical, time-sensitive, wireless mesh networking software and solutions.. As of the current date, Mesh Dynamics Inc. appears to be operating, though some assignments indicate transfers away from this entity.

Assignment timeline

• 2009-01-12 (executed) / recorded 2009-01-12 — Reel 022093/0736

  • Conveyance: Assignment
  • Assignor: DACOSTA, FRANCIS; DAYANANDAN, SRIRAM
  • Assignee: MESH DYNAMICS INC.
  • Correspondent: BLAKELY, SOKOLOFF, TAYLOR & ZAFMAN LLP, 12400 WILSHIRE BOULEVARD, 7TH FLOOR, LOS ANGELES, CALIFORNIA UNITED STATES 90025
  • Context: Original assignment from inventors to the initial assignee.

• 2014-11-20 (executed) / recorded 2014-11-21 — Reel 034233/0107

  • Conveyance: Assignment
  • Assignor: MESH DYNAMICS, INC.
  • Assignee: DYNAMIC MESH NETWORKS, INC. DBA MESHDYNAMICS
  • Correspondent: BLAKELY, SOKOLOFF, TAYLOR & ZAFMAN LLP, 12400 WILSHIRE BOULEVARD, 7TH FLOOR, LOS ANGELES, CALIFORNIA UNITED STATES 90025. This correspondent recurs in this chain.
  • Context: Transfer between related entities, likely an internal reorganization or name change.

• 2025-08-11 (executed) / recorded 2025-08-11 — Reel 071989/0520

  • Conveyance: Assignment
  • Assignor: ABACUS CONTROLS GROUP, INC
  • Assignee: DYNAMIC MESH NETWORKS, INC., CALIFORNIA
  • Correspondent: JEFFREY F. WEITZMAN, LAW OFFICES OF JEFFREY F. WEITZMAN, 12650 RIOS CANYON ROAD, LAKESIDE, CALIFORNIA UNITED STATES 92040
  • Context: Transfer of assignor's interest. The assignor (Abacus Controls Group, Inc) is a new entity in the chain, suggesting a complex transfer of ownership where Dynamic Mesh Networks, Inc. is consolidating assets or has acquired Abacus Controls Group, Inc.

• 2025-08-11 (executed) / recorded 2025-08-11 — Reel 071989/0525

  • Conveyance: Assignment
  • Assignor: ADVANCED CYBERNETICS GROUP INC.
  • Assignee: DYNAMIC MESH NETWORKS, INC., CALIFORNIA
  • Correspondent: JEFFREY F. WEITZMAN, LAW OFFICES OF JEFFREY F. WEITZMAN, 12650 RIOS CANYON ROAD, LAKESIDE, CALIFORNIA UNITED STATES 92040. This correspondent recurs in this chain.
  • Context: Transfer of assignor's interest. Similar to the previous entry, another new entity (Advanced Cybernetics Group Inc.) assigns to Dynamic Mesh Networks, Inc., suggesting consolidation or acquisition.

• 2022-03-01 (executed) / recorded 2025-08-12 — Reel 071994/0991

  • Conveyance: Assignment
  • Assignor: DYNAMIC MESH NETWORKS, INC.
  • Assignee: CHIRP NETWORKS INC.
  • Correspondent: JEFFREY F. WEITZMAN, LAW OFFICES OF JEFFREY F. WEITZMAN, 12650 RIOS CANYON ROAD, LAKESIDE, CALIFORNIA UNITED STATES 92040. This correspondent recurs in this chain.
  • Context: Transfer to Chirp Networks Inc.

• 2025-08-11 (executed) / recorded 2025-08-12 — Reel 071994/0995

  • Conveyance: Assignment
  • Assignor: CHIRP NETWORKS INC.
  • Assignee: DYNAMIC MESH NETWORKS, INC., CALIFORNIA
  • Correspondent: JEFFREY F. WEITZMAN, LAW OFFICES OF JEFFREY F. WEITZMAN, 12650 RIOS CANYON ROAD, LAKESIDE, CALIFORNIA UNITED STATES 92040. This correspondent recurs in this chain.
  • Context: Transfer back to Dynamic Mesh Networks, Inc. from Chirp Networks Inc. This could indicate a restructuring or the reversal of a previous transfer.

Timeline diagram

timeline
    title Ownership of US 8477762
    2009 : Assigned to Mesh Dynamics Inc
    2013 : Issued
    2014 : Assigned to Dynamic Mesh Networks
    2022 : Dynamic Mesh Networks to Chirp Networks
    2025 : Abacus Controls to Dynamic Mesh
         : Adv Cybernetics to Dynamic Mesh
         : Chirp Networks to Dynamic Mesh

NPE / troll-pattern signals

1. Shell-entity transfer — unclear. While Dynamic Mesh Networks, Inc. and Chirp Networks Inc. could potentially be licensing-focused entities, there is no explicit evidence in the provided patent text or Google Patents information to confirm they are non-practicing entities or shell companies. Mesh Dynamics Inc. was an operating company. The naming conventions (e.g., "Networks Inc.") don't definitively indicate shell status without further investigation into their business activities and product offerings.

2. Known asserter in the chain — not present. None of the assignees (Mesh Dynamics Inc., Dynamic Mesh Networks Inc., Abacus Controls Group Inc., Advanced Cybernetics Group Inc., Chirp Networks Inc.) match known public NPE lists such as those from Acacia Research Corp, Marathon Patent Group, Intellectual Ventures, IPNav, Wi-LAN, Mosaid / Conversant, Vringo, Pendrell, Innovatio IP Ventures, MPHJ Technology, Lumen View Technology, Round Rock Research, Document Generation Corp, or Erich Spangenberg entities.

3. Repeat correspondent across the chain — present. JEFFREY F. WEITZMAN of LAW OFFICES OF JEFFREY F. WEITZMAN appears as the correspondent on multiple assignments: 2025-08-11 / 2025-08-11 (Reel 071989/0520), 2025-08-11 / 2025-08-11 (Reel 071989/0525), 2022-03-01 / 2025-08-12 (Reel 071994/0991), and 2025-08-11 / 2025-08-12 (Reel 071994/0995).

4. Cascading transfers — present. There are multiple assignments within a short period:

   • 2025-08-11 / 2025-08-11 (Reel 071989/0520)
   • 2025-08-11 / 2025-08-11 (Reel 071989/0525)
   • 2022-03-01 (executed) / 2025-08-12 (recorded) (Reel 071994/0991)
   • 2025-08-11 (executed) / 2025-08-12 (recorded) (Reel 071994/0995)
     The fact that three of these assignments were executed on the same day (2025-08-11) and recorded within a day of each other (2025-08-11 and 2025-08-12) suggests a rapid series of transfers. The recurrence of the same correspondent, Jeffrey F. Weitzman, further supports this signal.

5. Pre-litigation transfer — unclear. The current information does not include any litigation filings, so it's not possible to determine if any assignments occurred within 6 months of the first suit.

6. Bankruptcy fire-sale — not present. The legal events from Google Patents show a lapse for failure to pay maintenance fees in 2021, but it was later reinstated. There is no indication of bankruptcy proceedings for any of the listed assignors.

7. Privateering — unclear. Without details on any litigation involving this patent and the relationship between the assignors and assignees, it's unclear if any transfers are part of a privateering strategy.

8. Defensive aggregator (anti-NPE) — not present. None of the assignees are identified as known defensive aggregators like RPX, Allied Security Trust (AST), LOT Network, Unified Patents, or Open Invention Network.

Verdict

NPE — moderate confidence

The presence of a repeat correspondent across several assignments [cite: 2025-08-11 / 2025-08-11 Reel 071989/0520, 2025-08-11 / 2025-08-11 Reel 071989/0525, 2022-03-01 / 2025-08-12 Reel 071994/0991, 2025-08-11 / 2025-08-12 Reel 071994/0995] and the cascading transfers of ownership in August 2025 are strong signals suggesting a potential NPE pattern. While the entities themselves are not on public NPE lists, these transactional behaviors often precede or facilitate patent assertion campaigns.

USPTO Assignment Center search page: https://assignmentcenter.uspto.gov/