Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Chromium(VI)-free black passivation of surfaces containing zinc

Chromium(VI)-free black passivation of surfaces containing zinc

US Patent 8460534 · Granted Jun 11, 2013

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Process for corrosion protection of iron containing materials2016
Polymers having terminal amino groups and use thereof as additives for zinc and 2016
Treatment solution for producing chrome and cobalt-free black conversion coating2015
Anti-corrosion treatment for conversion layers2013