Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method and apparatus for making a contact-free measurement of the actual position and of the profile of a coarse surface

Method and apparatus for making a contact-free measurement of the actual position and of the profile of a coarse surface

US Patent 4652131 · Granted Mar 24, 1987

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Conduction cooled superconducting undulator2025
Computer cabinet2025
Eyebrow pen2024
Array substrate and display panel2024
Eyebrow stamp2023
Ball valve2022
Ophthalmological length measurement by means of dual-beam space-time domain wave2022
Superconducting magnet with cold head thermal path cooled by heat exchanger2021
Cryogenic heat transfer by a nanoporous surface2019
Three dimensional negative poisson'S ratio spacer knitted fabric and method for 2016
Optical coherence reflectometry with depth resolution2013
Interferometric sample measurement2013