ADVANTEST CORPORATION

ADVANTEST CORPORATION has been granted 437 US utility patents between 2015 and 2025, placing ADVANTEST CORPORATION at rank #1,004 across all assignees tracked by PlainPatent. This portfolio spans 81 distinct Cooperative Patent Classification (CPC) subclasses, averaging 15.4 claims per patent with primary concentration in G01R (MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES). As a Foreign Corporation, ADVANTEST CORPORATION is one of the broader-portfolio assignees in the PatentsView dataset. The composite Innovation Score of 63.5/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 198 grants, compared with 239 in the 2015–2019 window — a -17% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. ADVANTEST CORPORATION's 15.4 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 81 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark ADVANTEST CORPORATION against peers pursuing similar technology classes.