Inventor · disambiguated record
Llewellan Anderson
Also filed as: ANDERSON LLEWELLAN
8 granted patents·166 citations·filing 1989–1997
89Inventor score
Top patents by PatentIndex Score
8 records- 0163US5863272ARaise drill assembly with two-piece planetary third reduction hub and out put shaftATLAS COPCO ROBBINS INC·Filed 1997·Granted Jan 26, 1999·18 cites·12 claims
- 0257US5429198ADown reaming apparatus having hydraulically controlled stabilizerROBBINS CO·Filed 1993·Granted Jul 4, 1995·33 cites·31 claims
- 0355US5649745AInflatable gripper assembly for rock boring machineATLAS COPCO ROBBINS INC·Filed 1995·Granted Jul 22, 1997·36 cites·28 claims
- 0454US5598895ACutter assembly having a plurality of independently rotatable cutting units thereonATLAS COPCO ROBBINS INC·Filed 1995·Granted Feb 4, 1997·34 cites·17 claims
- 0539US5012878ARock boring machine drive head with up and down drilling capabilityROBBINS CO·Filed 1989·Granted May 7, 1991·12 cites·12 claims
- 0638US5325932ADown reaming apparatusROBBINS CO·Filed 1992·Granted Jul 5, 1994·17 cites·28 claims
- 0737US5370194ADrive head assembly for drilling machineROBBINS CO·Filed 1993·Granted Dec 6, 1994·12 cites·21 claims
- 0828US5664606ADrill pipe having concave wrenching recessesATLAS COPCO ROBBINS INC·Filed 1995·Granted Sep 9, 1997·4 cites·40 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →