Inventor · disambiguated record

Donald Grailich

Also filed as: GRAILICH DONALD

1 granted patent·160 citations·filing 1996–1996

55Inventor score

Technology areasH04M

Files withEIS INTERNATIONAL INC1

Top patents by PatentIndex Score

1 record

0184US5867559AReal-time, on-line, call verification systemEIS INTERNATIONAL INC·Filed 1996·Granted Feb 2, 1999·160 cites·2 claims

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