Inventor · disambiguated record

David D. Nagel

Also filed as: NAGEL DAVID D

1 granted patent·160 citations·filing 1981–1981

55Inventor score

Technology areasE21B

Files withTELE DRILL INC1

Top patents by PatentIndex Score

1 record

0192US4496174AInsulated drill collar gap sub assembly for a toroidal coupled telemetry systemTELE DRILL INC·Filed 1981·Granted Jan 29, 1985·160 cites·13 claims

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