Inventor · disambiguated record

Dannie R. Collins

Also filed as: COLLINS DANNIE R

2 granted patents·53 citations·filing 1989–1999

65Inventor score

Technology areasE21B

Files withHALLIBURTON ENERGY SERV INC1 OTIS ENG CO1

Top patents by PatentIndex Score

2 records

0159US4928761ATwo-way plugs for wellsOTIS ENG CO·Filed 1989·Granted May 29, 1990·31 cites·26 claims
0244US6729406B1Method and apparatus for performing cutting operations in a subterranean wellHALLIBURTON ENERGY SERV INC·Filed 1999·Granted May 4, 2004·22 cites·51 claims

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