Asserter profile

Krisan Biotech Co Ltd

operating company1 patents now1 ever0 cases filed during tenure5 connections

PTAB exposure

1of this entity’s patents have been challenged at PTAB (1 total proceeding).

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
    Nkrisan_biotech["Krisan Biotech Co Ltd"]
    Natossa_therapeutics["Atossa Therapeutics Inc"]
    Nyao_lin_sun["Yao-Lin Sun"]
    Nlunghu_wang["Lunghu Wang"]
    Nchangjung_wu["ChangJung Wu"]
    Nchuander_huang["ChuanDer Huang"]
    Nsteven_c_quay["Steven C. Quay"]
    Nkrisan_biotech -->|"2023 · Assignment · 12071391"| Natossa_therapeutics
    Nyao_lin_sun -->|"2023 · Assignment · 12071391"| Nkrisan_biotech
    Nlunghu_wang -->|"2023 · Assignment · 12071391"| Nkrisan_biotech
    Nchangjung_wu -->|"2023 · Assignment · 12071391"| Nkrisan_biotech
    Nchuander_huang -->|"2023 · Assignment · 12071391"| Nkrisan_biotech
    Nsteven_c_quay -->|"2023 · Assignment · 12071391"| Natossa_therapeutics
    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 Nkrisan_biotech focal
    class Natossa_therapeutics operating

Patents currently held (1)

Connected entities (5)

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.