Assignee
WACHS E H CO
US·22 granted patents·821 citations·filing 1977–1998
Top patents by PatentIndex Score
22 records- 0193US4490909ATravelling pipe cutterWACHS E H CO·Filed 1982·Granted Jan 1, 1985·69 cites·3 claims
- 0292US4543861APortable latheWACHS E H CO·Filed 1984·Granted Oct 1, 1985·58 cites·5 claims
- 0391US4677884APortable end prep latheWACHS E H CO·Filed 1985·Granted Jul 7, 1987·78 cites·4 claims
- 0490US4318391APile-cutting machine and method of cutting multi-sided pilesWACHS E H CO·Filed 1980·Granted Mar 9, 1982·56 cites·16 claims
- 0589US5054342APipe machining apparatusWACHS E H CO·Filed 1989·Granted Oct 8, 1991·92 cites·17 claims
- 0689US4791842APipe machining apparatusWACHS E H CO·Filed 1988·Granted Dec 20, 1988·71 cites·2 claims
- 0789US4762038APipe machining apparatusWACHS E H CO·Filed 1986·Granted Aug 9, 1988·71 cites·6 claims
- 0887US5381996AValve operatorWACHS E H CO·Filed 1994·Granted Jan 17, 1995·62 cites·13 claims
- 0986US4483106AWeld sanderWACHS E H CO·Filed 1982·Granted Nov 20, 1984·36 cites·6 claims
- 1080US4655108ATube-squaring tool and clamping mechanismWACHS E H CO·Filed 1985·Granted Apr 7, 1987·43 cites·3 claims
- 1178US4144867AConcrete pile-cutting machineWACHS E H CO·Filed 1977·Granted Mar 20, 1979·29 cites·8 claims
- 1270US6009905AMounting for a valve operating machineWACHS E H CO·Filed 1997·Granted Jan 4, 2000·34 cites·10 claims
- 1360US5937373AMethod of controlling an underground fluid flow systemWACHS E H CO·Filed 1997·Granted Aug 10, 1999·30 cites·3 claims
- 1458US5823255ATubular casing cutterWACHS E H CO·Filed 1996·Granted Oct 20, 1998·20 cites·9 claims
- 1552US5605084ASquaring machine for various sized tubesWACHS E H CO·Filed 1995·Granted Feb 25, 1997·14 cites·7 claims
- 1651US5619893ATube squaring machineWACHS E H CO·Filed 1995·Granted Apr 15, 1997·14 cites·7 claims
- 1748US5933963ATube sawWACHS E H CO·Filed 1997·Granted Aug 10, 1999·12 cites·15 claims
- 1846US5794949AColletWACHS E H CO·Filed 1997·Granted Aug 18, 1998·11 cites·2 claims
- 1938US6244147B1Weld sample cutterWACHS E H CO·Filed 1998·Granted Jun 12, 2001·7 cites·13 claims
- 2036US5692422ASquaring machineWACHS E H CO·Filed 1995·Granted Dec 2, 1997·5 cites·2 claims
- 2132US5960686AAlignment pin for tube squaring machineWACHS E H CO·Filed 1997·Granted Oct 5, 1999·8 cites·2 claims
- 2230US6112627ASquaring machineWACHS E H CO·Filed 1997·Granted Sep 5, 2000·1 cites·13 claims
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