Inventor · disambiguated record

Frederic N. Schwettmann

Also filed as: SCHWETTMANN FREDERIC N

2 granted patents·66 citations·filing 1985–1985

65Inventor score

Technology areasG03F Y10T

Files withHEWLETT PACKARD CO2

Top patents by PatentIndex Score

2 records

0185US4608326ASilicon carbide film for X-ray masks and vacuum windowsHEWLETT PACKARD CO·Filed 1985·Granted Aug 26, 1986·52 cites·8 claims
0253US4971851ASilicon carbide film for X-ray masks and vacuum windowsHEWLETT PACKARD CO·Filed 1985·Granted Nov 20, 1990·14 cites·7 claims

Join the waitlist — get patent alerts

Get an alert when Frederic N. Schwettmann files or is granted a new patent.

We store only your email — no account needed. See our privacy policy.

Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →