Patent Attorney
Leon David Rosen
Reg. No. 21077
Active
Not accepting new clients
Firm
Leon D. Rosen & Associates
Leon D. Rosen & Associates
Location
Los Angeles, CA 90024
Los Angeles, CA 90024
Phone
310-477-0578
310-477-0578
Registration Type
ATTORNEY
ATTORNEY
Roster
USPTO OED FY25
USPTO OED FY25
Firm and contact info reflects the FY25 roster (last updated September 25).
Attorneys may have changed firms since then — patent filings show their current firm of record.