Assignment history

Inventors

• Shuji Inoue (Panasonic Corp)

Original assignee

Panasonic Corp. Panasonic is a multinational electronics company that manufactures a wide range of products, including display devices that would embody the claims of US8093830. Panasonic Corp is currently operating.

Assignment timeline

• 2009-09-22 (executed) / recorded 2009-09-22 — Reel 023265/0968
  • Conveyance: Assignment
  • Assignor: Inoue, Shuji
  • Assignee: Panasonic Corporation
  • Correspondent: Not specified in available data
  • Context: Inventor assigned rights to employer.
• 2014-01-17 (executed) / recorded 2014-02-03 — Reel 032152/0514
  • Conveyance: Assignment
  • Assignor: Panasonic Corporation (formerly Matsushita Electric Industrial Co., Ltd.)
  • Assignee: GODO KAISHA IP BRIDGE 1
  • Correspondent: Charles N.J. Ruggiero, Birch, Stewart, Kolasch & Birch, LLP, 8110 Gatehouse Road, Suite 100 East, Falls Church, VA 22042. This correspondent appears in this chain.
  • Context: Fire-sale.
• 2019-05-14 (executed) / recorded 2020-07-14 — Reel 053196/0829
  • Conveyance: Assignment
  • Assignor: GODO KAISHA IP BRIDGE 1
  • Assignee: PARKSIDE IP LLC
  • Correspondent: Charles N.J. Ruggiero, Birch, Stewart, Kolasch & Birch, LLP, 8110 Gatehouse Road, Suite 100 East, Falls Church, VA 22042. This correspondent appears in this chain.
  • Context: Transfer to asserter.
• 2020-11-25 (executed) / recorded 2021-03-05 — Reel 055513/0854
  • Conveyance: Assignment
  • Assignor: PARKSIDE IP LLC
  • Assignee: BISHOP DISPLAY TECH LLC
  • Correspondent: Charles N.J. Ruggiero, Birch, Stewart, Kolasch & Birch, LLP, 8110 Gatehouse Road, Suite 100 East, Falls Church, VA 22042. This correspondent appears in this chain.
  • Context: Transfer to asserter.

Timeline diagram

timeline
    title Ownership of US 8093830
    2008 : Priority Date
    2009 : Filed by Panasonic Corp
    2012 : Issued to Panasonic Corp
    2014 : Assigned to Godo Kaisha IP Bridge 1
    2020 : Assigned to Parkside IP LLC
    2021 : Assigned to Bishop Display Tech LLC

NPE / troll-pattern signals

1. Shell-entity transfer — present. The transfer from Panasonic to GODO KAISHA IP BRIDGE 1 and then to PARKSIDE IP LLC and BISHOP DISPLAY TECH LLC suggests shell entities. "IP Bridge" in the name of the assignee GODO KAISHA IP BRIDGE 1 indicates a focus on intellectual property, and both Parkside IP LLC and Bishop Display Tech LLC include "IP" or "Tech" in their names, often associated with licensing entities.
2. Known asserter in the chain — present. IP Bridge is a known NPE. Unified Patents lists IP Bridge as an NPE. Also, Bishop Display Tech LLC has been identified in multiple litigations (e.g., 2:25-cv-00310, 2:26-cv-00257, 2:24-cv-00085, 2:21-cv-00139, 2:22-cv-00385 in Texas Eastern District Court).
3. Repeat correspondent across the chain — present. Charles N.J. Ruggiero of Birch, Stewart, Kolasch & Birch, LLP is the correspondent for the assignments recorded on 2014-02-03 (Reel 032152/0514), 2020-07-14 (Reel 053196/0829), and 2021-03-05 (Reel 055513/0854).
4. Cascading transfers — present. There are two transfers within approximately 20 months: from GODO KAISHA IP BRIDGE 1 to PARKSIDE IP LLC (executed 2019-05-14) and from PARKSIDE IP LLC to BISHOP DISPLAY TECH LLC (executed 2020-11-25).
5. Pre-litigation transfer — present. The assignment to Bishop Display Tech LLC was executed on 2020-11-25 and recorded on 2021-03-05. The first litigation case listed for this patent was filed in the Texas Eastern District Court on 2021-03-24 (case 2:21-cv-00139), which is less than 6 months after the execution date of the assignment to Bishop Display Tech LLC.
6. Bankruptcy fire-sale — not present. No indication of bankruptcy for Panasonic Corp.
7. Privateering — unclear. While Panasonic is an operating company, and the patent was transferred to entities that are asserting, there is no explicit evidence from the provided text to confirm if this is a privateering arrangement where Panasonic is actively directing or benefiting from the assertions against its competitors.
8. Defensive aggregator (anti-NPE) — not present. The chain ends with Bishop Display Tech LLC, which is an asserting entity, not a defensive aggregator.

Verdict

NPE — high confidence. This verdict is supported by multiple strong signals: the patent was transferred from an operating company (Panasonic) to a known NPE (GODO KAISHA IP BRIDGE 1), and subsequently to other entities (PARKSIDE IP LLC, BISHOP DISPLAY TECH LLC) that exhibit characteristics of shell entities and have a history of litigation. The consistent use of the same correspondent attorney across multiple assignments in the chain further reinforces this pattern. Additionally, the pre-litigation transfer to Bishop Display Tech LLC strongly indicates an assertion-driven strategy.

For verification, see the USPTO Assignment Center search for US patent 8093830: https://assignmentcenter.uspto.gov/