The dataset ranks 60 companies, with the leader holding 23 of the 180 records in scope and the top 5 combined accounting for 47.8% of all records. The top 10 together hold 65.0%, meaning most of the remaining assignees appear with only a handful of filings each. Aerospace primes, resin and adhesive majors, and composites specialists all appear among the ranked leaders, so leadership is not concentrated in a single industry segment.

USRE38433E1 covers a composite overwrapped pressure vessel built on a thin titanium-alloy liner joined to a filament-wound composite overwrap through a film adhesive interface, with the liner formed by spin forming, machining and electron-beam welding. It blocks designs that combine that specific thin metal liner construction with a filament-wound overwrap and adhesive interface as claimed. It does not automatically block alternative liner materials, different joining methods, or overwrap constructions that diverge from the claimed interface and fabrication steps — those would need a separate claim-by-claim comparison.

Filing density concentrates heavily in resin and additive chemistry classes such as C08G and C08L, while classes tied more directly to vessel structure and process control — mandrel extraction, cure exotherm management for thick-wall winding, and dome geometry optimisation — show comparatively thinner direct coverage. That gap suggests process-control and structural-geometry claims are less crowded than the underlying materials chemistry, though any filing decision should be checked against the top assignees’ specific portfolios first.