Asserter profile
RAMBUS INC.
operating company0 patents now6 ever0 cases filed during tenure7 connections
Also seen as: RAMBUS INTERNATIONAL LTD. · Rambus Inc.
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
Nrambus["RAMBUS INC."]
Noh_kyung_suk_shaeffer_ian_p["OH, KYUNG SUK, SHAEFFER, IAN P."]
Nsignal["SIGNAL LLP"]
Noh_kyung_s_shaeffer_ian_p["Oh, Kyung S.; Shaeffer, Ian P."]
Nware_frederick_a_wang_yuanlong["WARE, FREDERICK A.; WANG, YUANLONG"]
Noh_kyung_s_and_shaeffer_ian_p["OH, KYUNG S. AND SHAEFFER, IAN P."]
Nsolid_state_opto["SOLID STATE OPTO LIMITED"]
Nrambus_delaware["RAMBUS DELAWARE LLC"]
Nparker_jeffery_r["PARKER, JEFFERY R."]
Nacacia_research["ACACIA RESEARCH GROUP LLC"]
Noh_kyung_suk_shaeffer_ian_p -->|"2018 · Assignment of Assignor's Interest · 10056902"| Nrambus
Nrambus -->|"2025 · Assignment of Assignor's Interest · 10056902"| Nsignal
Noh_kyung_s_shaeffer_ian_p -->|"2009 · Assignment of Assignor's Interest · 10115439"| Nrambus
Nrambus -->|"2025 · Assignment of Assignor's Interest · 10115439"| Nsignal
Nware_frederick_a_wang_yuanlong -->|"2014 · ASSIGNMENT OF ASSIGNORS INTEREST · 9092352"| Nrambus
Nrambus -->|"2025 · ASSIGNMENT · 9092352"| Nsignal
Nrambus -->|"2025 · Assignment · 10944400"| Nsignal
Noh_kyung_s_and_shaeffer_ian_p -->|"2009 · ASSIGNMENT · 8947962"| Nrambus
Nrambus -->|"2025 · ASSIGNMENT · 8947962"| Nsignal
Nsolid_state_opto -->|"2010 · ASSIGNMENT · 7300194"| Nrambus
Nrambus -->|"2013 · ASSIGNMENT · 7300194"| Nrambus_delaware
Nsolid_state_opto -->|"2010 · Assignment · 7384177"| Nrambus
Nrambus -->|"2013 · Assignment · 7384177"| Nrambus_delaware
Nparker_jeffery_r -->|"2005 · ASSIGNMENT · 7300194"| Nsolid_state_opto
Nparker_jeffery_r -->|"2005 · Assignment · 7384177"| Nsolid_state_opto
Nrambus_delaware -->|"2013 · ASSIGNMENT · 7300194"| Nacacia_research
Nrambus_delaware -->|"2013 · Assignment · 7384177"| Nacacia_research
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 Nrambus focal
class Nsignal npe
class Nsolid_state_opto operating
class Nrambus_delaware operating
class Nacacia_research npe
Patents previously held (6)
- US 101154392009-12-08 → 2025-09-29
- US 89479622009-12-08 → 2025-09-29
- US 73001942013-03-04 → 2013-03-04
- US 73841772013-03-04 → 2013-03-04
- US 90923522014-02-12 → 2025-10-15
- US 100569022018-04-25 → 2025-10-15
Connected entities (7)
- SIGNAL LLPNPE5 patents
- SOLID STATE OPTO LIMITEDoperating company2 patents
- RAMBUS DELAWARE LLCoperating company2 patents
- OH, KYUNG SUK, SHAEFFER, IAN P.individual1 patent
- Oh, Kyung S.; Shaeffer, Ian P.individual1 patent
- WARE, FREDERICK A.; WANG, YUANLONGindividual1 patent
- OH, KYUNG S. AND SHAEFFER, IAN P.individual1 patent
Correspondent attorneys (6)
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.