Inventor · disambiguated record
David R. Bazzell
Also filed as: BAZZELL DAVID R
8 granted patents·4 pending applications·142 citations·filing 1975–2019
89Inventor score
Top patents by PatentIndex Score
12 records- 0197US10422107B2Trenching system with hydraulically adjustable hubCHARLES MACHINE WORKS·Filed 2017·Granted Sep 24, 2019·18 cites·18 claims
- 0296US10378179B2Trenching systemCHARLES MACHINE WORKS·Filed 2017·Granted Aug 13, 2019·14 cites·21 claims
- 0396US9695573B2Trenching system with hydraulically adjustable hubCHARLES MACHINE WORKS·Filed 2015·Granted Jul 4, 2017·18 cites·21 claims
- 0496US8375605B2Trenching systemCHARLES MACHINE WORKS·Filed 2010·Granted Feb 19, 2013·33 cites·13 claims
- 0594US9752301B2Trenching systemCHARLES MACHINE WORKS·Filed 2014·Granted Sep 5, 2017·21 cites·25 claims
- 0694US8806784B2Trenching systemCHARLES MACHINE WORKS·Filed 2013·Granted Aug 19, 2014·25 cites·11 claims
- 0779US11396734B2Trenching system with hydraulically adjustable hubCHARLES MACHINE WORKS·Filed 2019·Granted Jul 26, 2022·2 cites·15 claims
- 0853US3991494AConveyor attachment for spoils removal from a trench digging machineCHARLES MACHINE WORKS·Filed 1975·Granted Nov 16, 1976·11 cites·9 claims
- 0951US2009095946A1Silt Fence System And Method Of ManufactureCHARLES MACHINE WORKS·Filed 2008·Application pending·0 cites
- 1049US2007253781A1Cable Injector And Puller For Pipe BurstingCHARLES MACHINES WORKS INC·Filed 2007·Application pending·0 cites
- 1143US2009110493A1Silt Fence Installation System And MethodCHARLES MACHINE WORKS·Filed 2008·Application pending·0 cites
- 1236US2008069643A1Underground Cable Laying ApparatusCHARLES MACHINE WORKS·Filed 2007·Application pending·0 cites
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