Assignment history

Inventors

The inventors named on the assignment record for US patent D1100567 are Andrew C. Clark and David W. Topham. [cite: 7, previous search] Their employer at the time of filing, other than the assignee of the patent, is not determinable from the available records.

Original assignee

The original assignee on record for US patent D1100567 is SENSORTECH CORPORATION, located at 100 Industrial Drive, Greenville, South Carolina, United States 29607. [cite: 7, previous search]

Sensortech Corporation is an operating company primarily involved in industrial electronics and data communication solutions, including remote monitors & controllers, wireless remote transmitters, and various sensors and probes for applications such as bulk liquid tank monitoring, agriculture, and consumer IoT. They ship products embodying claims, as evidenced by their "D Tech" product line, which includes "Fence D Tech," "Trough D Tech," and "Hydro D Tech" for monitoring remote assets using cellular technology.

The company appears to be operating, with recent news indicating an acquisition of assets from Electronic Sensors, Inc., and ongoing product development and offerings. Prospeo estimates their annual revenue at $513,330 and valuation at $1,700,000, with approximately 1-10 employees. It is distinct from other entities also named "Sensortech" found in searches, such as the Swiss Sensortec (acquired/merged operating subsidiary of Bemsiq), the Korean SensorTech Inc., or SensorTec, LLC (Fort Wayne, Indiana, acquired by Junto Holdings Group, Inc.).

Assignment timeline

The USPTO Patent Assignment Search revealed one assignment for US patent D1100567. [cite: 7, previous search]

• 2010-05-20 (executed) / recorded 2010-05-27 — Reel 24450/0148 [cite: 7, previous search]
  • Conveyance: ASSIGNMENT OF ASSIGNOR'S INTEREST [cite: 7, previous search]
  • Assignor: CLARK, ANDREW C. and TOPHAM, DAVID W. [cite: 7, previous search]
  • Assignee: SENSORTECH CORPORATION [cite: 7, previous search]
  • Correspondent: BALLARD SPAHR LLP 999 PEACHTREE STREET SUITE 1000 ATLANTA, GA 30309 [cite: 7, previous search]
  • Context: Original assignment from inventors to the operating company.

Timeline diagram

timeline
    title Ownership of US D1100567
    2010 : Inventors assigned to Sensortech Corp

NPE / troll-pattern signals

1. Shell-entity transfer — Not present. The only recorded transfer is from the inventors to Sensortech Corporation, an operating company that sells products. [cite: 7, previous search]
2. Known asserter in the chain — Not present. Sensortech Corporation is an operating company, not identified as a known NPE.
3. Repeat correspondent across the chain — Unclear. Only one assignment is recorded, so there is no chain to observe recurrence. The correspondent is BALLARD SPAHR LLP. [cite: 7, previous search]
4. Cascading transfers — Not present. Only one assignment is recorded. [cite: 7, previous search]
5. Pre-litigation transfer — Unclear. No litigation records were found in previous searches, so this signal cannot be assessed.
6. Bankruptcy fire-sale — Not present. There is no indication that the assignment to Sensortech Corporation resulted from a bankruptcy proceeding.
7. Privateering — Not present. There is no evidence of an operating company transferring the patent to an NPE for assertion on its behalf.
8. Defensive aggregator (anti-NPE) — Not present. The current owner, Sensortech Corporation, is an operating company, not a defensive aggregator.

Verdict

Insufficient data. Only one assignment from the inventors to an operating company, Sensortech Corporation, is recorded (Reel 24450/0148). This single record does not provide sufficient information to identify any NPE or patent-troll patterns. The current owner appears to be an operating company.

[USPTO Assignment Center search for D1100567](https://assignmentcenter.uspto.gov/patent/index.html - search by patent number D1100567)