Asserter profile

Prince Castle LLC

operating company0 patents now3 ever0 cases filed during tenure3 connections

Also seen as: PRINCE CASTLE LLC

PTAB exposure

3of this entity’s patents have been challenged at PTAB (3 total proceedings). 3 currently have active proceedings.

Two-hop network

Edges marked ⚖️ overlap with at least one infringement suit filed during the receiving entity’s tenure with the patent. Bold-bordered = this entity. Red = NPE; orange = shell LLC; green = defensive aggregator; blue = operating company.

flowchart LR
    Nprince_castle["Prince Castle LLC"]
    Nhartfelder_charles_b_kestner_kyle_thomas_lyons_christopher_b["HARTFELDER, CHARLES B.; KESTNER, KYLE T…"]
    Nkyle_thomas_kestner_christopher_b_lyons_jr_charles_b_hartfel["Kyle Thomas Kestner; Christopher B. Lyo…"]
    Nkestner_kyle_thomas_lyons_christopher_b_jr_hartfelder_charle["Kestner, Kyle Thomas; Lyons, Christophe…"]
    Nhartfelder_charles_b_kestner_kyle_thomas_lyons_christopher_b -->|"2019 · Assignment of Assignors Interest · 10852002"| Nprince_castle
    Nkyle_thomas_kestner_christopher_b_lyons_jr_charles_b_hartfel -->|"2019 · Assignment · 10841981"| Nprince_castle
    Nkestner_kyle_thomas_lyons_christopher_b_jr_hartfelder_charle -->|"2018 · Assignment · 10492641"| Nprince_castle
    classDef focal fill:#fef3c7,stroke:#92400e,stroke-width:3px,color:#1c1917
    classDef npe fill:#fee2e2,stroke:#be123c,stroke-width:2px,color:#1c1917
    classDef shell fill:#fed7aa,stroke:#9a3412,stroke-width:2px,color:#1c1917
    classDef defensive fill:#dcfce7,stroke:#15803d,stroke-width:2px,color:#1c1917
    classDef operating fill:#e0f2fe,stroke:#075985,stroke-width:1px,color:#1c1917
    class Nprince_castle focal

Patents previously held (3)

Connected entities (3)

Correspondent attorneys (1)

Attorneys / firms recorded with USPTO when this entity received a patent. Recurrence is the signal — many firms do both NPE and operating-company patent work, so a single appearance doesn’t mean much.