Inventor · disambiguated record
Donald N. Terwilliger
Also filed as: TERWILLIGER DONALD N
7 granted patents·160 citations·filing 1988–2002
87Inventor score
Top patents by PatentIndex Score
7 records- 0185US4858938ATwo piece collet with interlocking collet segmentsHARDINGE BROTHERS INC·Filed 1988·Granted Aug 22, 1989·51 cites·12 claims
- 0279US5096213ACollet assemblyHARDINGE BROTHERS INC·Filed 1990·Granted Mar 17, 1992·42 cites·19 claims
- 0362US6257595B1Collect chuck with quick-change capHARDINGE INC·Filed 1999·Granted Jul 10, 2001·26 cites·14 claims
- 0456US5330224ACollet chuckHARDINGE BROTHERS INC·Filed 1993·Granted Jul 19, 1994·17 cites·20 claims
- 0554US6726221B2Dead length collet chuck assemblyHARDINGE INC·Filed 2002·Granted Apr 27, 2004·10 cites·9 claims
- 0641US5087059ATool for installing or removing a collet headHARDINGE BROTHERS INC·Filed 1990·Granted Feb 11, 1992·9 cites·25 claims
- 0736US5948177ACollet metal treating processHARDINGE INC·Filed 1998·Granted Sep 7, 1999·5 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →