Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Safety device for ladder access opening to an elevated platform

Safety device for ladder access opening to an elevated platform

US Patent 4391347 · Granted Jul 5, 1983

Estimated economic value: $5,152,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Composite assembly for unhardened fuselage components2025
Pick-and-place system and method for transferring and installing a contoured com2025
Zonal lamination for composite parts in a moving line2025
Fabrication of multi-segment spars2025
Contour enforcement for line assembled fuselage segments2025
Assembly line fabrication and assembly of aircraft wings2025
Non-destructive inspection station for aircraft fuselage sections fabricated in 2025
Methods and systems for assembly and installation of airframe crown modules2025
Frame installation station for aircraft fuselage segments2025
Edge trimming for moving-line fabrication of aircraft2025
Cut-out processes for moving-line structure assembly2025
Forming apparatus, method, and system2025