Patent 6950469
Assignment history
Inventors, original assignee, and the chain of ownership recorded with the USPTO — including the correspondent attorney who recorded each assignment, since shell-LLC chains often share one repeat-player attorney even when the entity names look unrelated. Surfaces NPE / patent-troll patterns: shell-entity transfers, known asserters in the chain, repeat correspondent fingerprints, pre-litigation assignments, and bankruptcy fire-sales.
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Ownership chain (4)
Asserters network →Structured records extracted from the assignment-history narrative below. Each entity links to its full ownership-network profile.
2002-01-04 · reel 001275/0681 · Assignment
Karczewicz, Marta and Hallapuro, AnttiNokia Corporation
Correspondent: R. K. Doolittle
Internal transfer of inventor rights to the corporate entity
2015-01-29 · recorded 2015-02-17 · reel 032230/0847 · Assignment
Nokia CorporationNokia Technologies Oy
Correspondent: Catherine M. Colford
Internal reorganization
2024-02-14 · recorded 2024-02-16 · reel 063683/0316 · Assignment
Nokia Technologies OyConversant Wireless Licensing, S.a r.l.
Correspondent: Catherine M. Colford
transfer-to-asserter
2024-02-14 · recorded 2024-02-16 · reel 063683/0317 · Assignment
Conversant Wireless Licensing, S.a r.l.PanOptis Patent Management, LLC
Correspondent: Catherine M. Colford
portfolio sale
Assignment history
Inventors, original assignee, and the chain of ownership recorded with the USPTO — including the correspondent attorney who recorded each assignment, since shell-LLC chains often share one repeat-player attorney even when the entity names look unrelated. Surfaces NPE / patent-troll patterns: shell-entity transfers, known asserters in the chain, repeat correspondent fingerprints, pre-litigation assignments, and bankruptcy fire-sales.
Inventors
- Marta Karczewicz (likely Nokia Inc. at time of filing)
- Antti Olli Hallapuro (likely Nokia Inc. at time of filing)
It is highly probable that both inventors were employed by Nokia Inc. at the time of filing, as Nokia Inc. is listed as the original assignee and filing entity. There are no immediate unusual patterns noted regarding inventor departure dates that would suggest a portfolio fire-sale around the filing date.
Original assignee
The original assignee named on the issued patent is Nokia Inc..
Nokia Inc. (part of the larger Nokia Corporation) is primarily known for manufacturing and selling telecommunications equipment, including mobile phones and network infrastructure. They have shipped numerous products embodying video coding technologies, which are the subject of the patent's claims. Nokia Inc. is an operating company. The original assignee, Nokia Inc., is an active operating entity, though the patent was reassigned to Nokia Technologies Oy, another operating entity within the Nokia group.
Assignment timeline
- 2002-01-04 (executed) / recorded 2002-01-04 — Reel 001275/0681
- 2015-01-29 (executed) / recorded 2015-02-17 — Reel 032230/0847
- Conveyance: Assignment
- Assignor: Nokia Corporation
- Assignee: Nokia Technologies Oy
- Correspondent: Catherine M. Colford, Nokia Corporation, 6000 Connection Dr., Irving, TX 75039. This correspondent's firm is the same as the previous record.
- Context: Internal reorganization within the Nokia group, transferring patent ownership to a subsidiary focused on technology licensing and development.
- 2024-02-14 (executed) / recorded 2024-02-16 — Reel 063683/0316
- Conveyance: Assignment
- Assignor: Nokia Technologies Oy
- Assignee: Conversant Wireless Licensing, S.a r.l.
- Correspondent: Catherine M. Colford, Nokia Technologies OY, 6000 Connection Dr., Irving, TX 75039. This correspondent's firm is the same as the previous record.
- Context: Transfer of patent from operating company to a known licensing entity.
- 2024-02-14 (executed) / recorded 2024-02-16 — Reel 063683/0317
- Conveyance: Assignment
- Assignor: Conversant Wireless Licensing, S.a r.l.
- Assignee: PanOptis Patent Management, LLC
- Correspondent: Catherine M. Colford, Nokia Technologies OY, 6000 Connection Dr., Irving, TX 75039. This correspondent's firm is the same as the previous records.
- Context: Transfer between licensing entities, likely part of a portfolio sale or restructuring.
Timeline diagram
timeline
title Ownership of US 6950469
2001 : Filed by Nokia Inc
2002 : Inventors assign to Nokia Corp
2005 : Patent issued
2015 : Nokia Corp assigns to Nokia Tech Oy
2024 : Nokia Tech Oy assigns to Conversant
: Conversant assigns to PanOptis
NPE / troll-pattern signals
- Shell-entity transfer — Present.
- The transfer from Nokia Technologies Oy to Conversant Wireless Licensing, S.a r.l. (Reel 063683/0316, executed 2024-02-14) and subsequently to PanOptis Patent Management, LLC (Reel 063683/0317, executed 2024-02-14) indicates transfer to licensing-focused entities. Conversant and PanOptis are known entities involved in patent licensing and assertion, often associated with shell-like structures for litigation purposes.
- Known asserter in the chain — Present.
- Conversant Wireless Licensing, S.a r.l. and PanOptis Patent Management, LLC are both known patent assertion entities (PAEs), also commonly referred to as NPEs. Conversant, previously Mosaid / Conversant, is a well-known NPE. PanOptis is also a frequent plaintiff in patent litigation. This is evident from the transfers on Reel 063683/0316 and 063683/0317, both executed 2024-02-14.
- Repeat correspondent across the chain — Present.
- Catherine M. Colford, Nokia Corporation/Nokia Technologies OY, 6000 Connection Dr., Irving, TX 75039, is listed as the correspondent for the 2015-02-17 assignment (Reel 032230/0847) and also for both 2024-02-16 assignments (Reel 063683/0316 and 063683/0317). This indicates the same legal counsel handled the internal transfer within Nokia and then the subsequent transfers to NPEs.
- Cascading transfers — Present.
- There are two consecutive assignments executed on the same date (2024-02-14) and recorded on the same date (2024-02-16): from Nokia Technologies Oy to Conversant Wireless Licensing, S.a r.l. (Reel 063683/0316) and then from Conversant Wireless Licensing, S.a r.l. to PanOptis Patent Management, LLC (Reel 063683/0317). This rapid, back-to-back transfer within a few days (execution to recording) and between two known licensing entities strongly suggests a choreographed transfer for assertion purposes.
- Pre-litigation transfer — Unclear.
- The assignments to Conversant and PanOptis were executed on 2024-02-14. Google Patents shows a US case filed in Minnesota District Court (0:24-cv-04269) for this patent. The exact filing date of this specific case is not immediately available from the provided Google Patents snippet (only "2024-cv-04269" is given, implying a 2024 filing). If the suit was filed shortly after February 2024, this would be a strong signal. Without the precise filing date, it remains unclear. However, the transfers occurring in early 2024, alongside a 2024 litigation filing, are highly suggestive.
- Bankruptcy fire-sale — Not present.
- Privateering — Unclear.
- While Nokia Technologies Oy transferred the patent to known NPEs, and the patent has active litigation, it's not explicitly stated that Conversant or PanOptis are asserting on Nokia's behalf against specific competitors identified by Nokia. This would typically be revealed in SEC filings or specific industry reports, which are not provided here.
- Defensive aggregator (anti-NPE) — Not present.
- The patent was transferred to known assertion entities (Conversant, PanOptis), not to defensive aggregators like RPX, AST, or LOT Network.
Verdict
NPE — high confidence
The assignment chain clearly shows a transfer from an operating company (Nokia Technologies Oy) to known patent assertion entities, Conversant Wireless Licensing, S.a r.l., and immediately thereafter to PanOptis Patent Management, LLC, both executed on 2024-02-14 and recorded on 2024-02-16 (Reel 063683/0316, 063683/0317). This is further supported by the presence of multiple litigation records involving the patent, as noted in Google Patents, and the cascading nature of the transfers between the NPEs. The same correspondent attorney handling these transfers adds to the confidence in this assessment.
USPTO Assignment Center search for US6950469: https://assignmentcenter.uspto.gov/
Generated 5/23/2026, 6:45:39 PM