Assignment history

Inventors

• Francis daCosta
• Sriram Dayanandan

Their employer at the time of filing was Mesh Dynamics Inc. There are no immediate unusual patterns evident from the provided information regarding their departure from the original assignee within 12 months of filing.

Original assignee

The original assignee named on the issued patent is Mesh Dynamics Inc. Based on the patent description and field tests (e.g., "Mesh nodes were mounted in army vehicles," "mesh nodes were deployed in underground mine tunnels"), Mesh Dynamics Inc. appears to have developed and likely shipped products embodying the claims, specifically wireless mesh networking equipment for mobile applications. Their primary line of business was wireless mesh networks with mobility extensions. According to Google Patents, the current assignee is Dynamic Mesh Networks Inc., suggesting Mesh Dynamics Inc. was acquired or underwent a name change to Dynamic Mesh Networks Inc. at some point. The legal status is "Active, expires 2029-09-22".

Assignment timeline

• 2007-08-10 (executed) / recorded 2007-08-10 — Reel 019446/0993

  • Conveyance: Assignment
  • Assignor: DACOSTA, FRANCIS; DAYANANDAN, SRIRAM
  • Assignee: MESH DYNAMICS, INC.
  • Correspondent: MESH DYNAMICS, INC. (address not explicitly provided in Google Patents; would typically be on USPTO Assignment Center).
  • Context: Original assignment from inventors to the filing company.

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

  • Conveyance: Assignment
  • Assignor: MESH DYNAMICS, INC.
  • Assignee: DYNAMIC MESH NETWORKS, INC. DBA MESHDYNAMICS, CALI
  • Correspondent: Not explicitly provided in Google Patents; would typically be on USPTO Assignment Center.
  • Context: Transfer of interest from Mesh Dynamics, Inc. to Dynamic Mesh Networks, Inc. dba Meshdynamics.

• 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: Not explicitly provided in Google Patents; would typically be on USPTO Assignment Center.
  • Context: Assignment from Abacus Controls Group, Inc. to Dynamic Mesh Networks, 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: Not explicitly provided in Google Patents; would typically be on USPTO Assignment Center.
  • Context: Assignment from Advanced Cybernetics Group Inc. to Dynamic Mesh Networks, Inc.

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

  • Conveyance: Assignment
  • Assignor: DYNAMIC MESH NETWORKS, INC.
  • Assignee: CHIRP NETWORKS INC., CALIFORNIA
  • Correspondent: Not explicitly provided in Google Patents; would typically be on USPTO Assignment Center.
  • Context: Assignment from Dynamic Mesh Networks, Inc. to Chirp Networks Inc.

• 2025-08-11 (executed) / recorded 2025-08-12 — Reel 072431/0726

  • Conveyance: Assignment
  • Assignor: CHIRP NETWORKS INC.
  • Assignee: DYNAMIC MESH NETWORKS, INC., CALIFORNIA
  • Correspondent: Not explicitly provided in Google Patents; would typically be on USPTO Assignment Center.
  • Context: Assignment from Chirp Networks Inc. to Dynamic Mesh Networks, Inc. This appears to be a re-assignment or a correction given the execution and recording dates relative to the previous entry.

Timeline diagram

timeline
    title Ownership of US 7894385
    2007 : Inventors to Mesh Dynamics Inc
    2011 : Patent issued
    2014 : Assigned to Dynamic Mesh Networks
    2025 : Assigned from Abacus to Dyn Mesh
         : Assigned from Advanced to Dyn Mesh
         : Assigned to Chirp Networks Inc
         : Assigned to Dynamic Mesh Networks

NPE / troll-pattern signals

1. Shell-entity transfer — unclear. The transfer from "MESH DYNAMICS, INC." to "DYNAMIC MESH NETWORKS, INC. DBA MESHDYNAMICS" in 2014 might represent an internal reorg or a change in operating focus. The later assignments in 2025 to/from "CHIRP NETWORKS INC." also do not inherently indicate a shell entity without further information on their business operations.

2. Known asserter in the chain — not present. None of the listed assignees (Mesh Dynamics Inc., Dynamic Mesh Networks Inc., Abacus Controls Group Inc., Advanced Cybernetics Group Inc., Chirp Networks Inc.) are immediately recognizable as a publicly known NPE from the provided information.

3. Repeat correspondent across the chain — unclear. The Google Patents data does not explicitly list the correspondent for most assignments beyond the initial one, making it impossible to determine if the same attorney or firm recurs. The initial assignment lists "MESH DYNAMICS, INC." as the correspondent, which is the assignee itself, not an attorney.

4. Cascading transfers — present. There are three assignments recorded on 2025-08-11 and 2025-08-12 involving Dynamic Mesh Networks, Inc., Abacus Controls Group, Inc., Advanced Cybernetics Group Inc., and Chirp Networks Inc.. Specifically, the assignments to and from Dynamic Mesh Networks, Inc. and Chirp Networks Inc. occur within a very short timeframe in August 2025. This rapid succession of transfers (three in two days, although some are executed on the same date) suggests cascading transfers, especially the transfer to Chirp Networks Inc. on 2025-08-12 and then back to Dynamic Mesh Networks, Inc. on the same day (recorded) or the previous day (executed).

5. Pre-litigation transfer — present. The patent family has litigation. The provided information lists several cases filed in 2025, for example, 3:25-cv-06441, 2:25-cv-00781, 2:25-cv-00472, 5:25-cv-06441. The assignments to/from Dynamic Mesh Networks, Inc., Abacus Controls Group Inc., Advanced Cybernetics Group Inc., and Chirp Networks Inc. are executed and recorded in August 2025. This timing places these assignments very close to or concurrent with the reported litigation filings in 2025, specifically within 6 months.

6. Bankruptcy fire-sale — not present. No indication of bankruptcy for any of the assignors or assignees.

7. Privateering — unclear. There is no information provided to suggest an operating company transferred the patent to an NPE to assert on its behalf.

8. Defensive aggregator (anti-NPE) — not present. The chain does not end at any known defensive aggregators like RPX, AST, LOT Network, Unified Patents, or Open Invention Network.

Verdict

NPE — moderate confidence.
The presence of cascading transfers (Reel 071989/0520, 071989/0525, 071994/0991, 072431/0726, all recorded in August 2025) and pre-litigation transfers (assignments in August 2025 preceding or coinciding with litigation filings in 2025) are strong signals of potential NPE activity. The rapid succession of assignments, particularly the transfer to Chirp Networks Inc. and then back to Dynamic Mesh Networks, Inc. around the time litigation was initiated, suggests a structured transfer strategy often associated with assertion campaigns.

USPTO Assignment Center search page: https://assignmentcenter.uspto.gov/ (search for patent number 7894385).