Lex Mentis™Attorney Check

New York attorney · Reg. #4570800

William Rudolph Arthur Kleysteuber, Iv

Registered (registry: Currently registered)

Current employer

The Boeing Company · Seattle, WA · since at least September 2026

Admission

Admitted 2008, Third Department · YALE

Employment history

Compiled from NYS Office of Court Administration registration records, published NY Appellate Division decisions, and SEC orders against attorneys; current as of October 2026. Not an official record; verify with the NY Courts Attorney Search.