Assignee
PACIFIC ROLLER DIE CO INC
US·10 granted patents·204 citations·filing 1974–2001
Top patents by PatentIndex Score
10 records- 0194US6339945B2Apparatus for forming tapered spiral tubesPACIFIC ROLLER DIE CO INC·Filed 2001·Granted Jan 22, 2002·33 cites·7 claims
- 0286US4129152ADouble wall helical pipe and strip configuration for forming samePACIFIC ROLLER DIE CO INC·Filed 1974·Granted Dec 12, 1978·39 cites·9 claims
- 0378US4018072AEnd recorrugatorPACIFIC ROLLER DIE CO INC·Filed 1975·Granted Apr 19, 1977·21 cites·13 claims
- 0477US4630650ASpiral ribbed pipePACIFIC ROLLER DIE CO INC·Filed 1984·Granted Dec 23, 1986·39 cites·10 claims
- 0564US4791800ARoll forming process and apparatus for making ribs in strip materialPACIFIC ROLLER DIE CO INC·Filed 1987·Granted Dec 20, 1988·17 cites·11 claims
- 0663US4763830AMethod for welding ribbed pipePACIFIC ROLLER DIE CO INC·Filed 1986·Granted Aug 16, 1988·18 cites·12 claims
- 0751US4255999AMethod and apparatus for removing camber from stripPACIFIC ROLLER DIE CO INC·Filed 1978·Granted Mar 17, 1981·10 cites·17 claims
- 0847US4756217ATravelling pipe cut-offPACIFIC ROLLER DIE CO INC·Filed 1987·Granted Jul 12, 1988·14 cites·7 claims
- 0942US5131693APipe coupling methodPACIFIC ROLLER DIE CO INC·Filed 1991·Granted Jul 21, 1992·12 cites·13 claims
- 1030US4318320AMethod for removing camber from stripPACIFIC ROLLER DIE CO INC·Filed 1980·Granted Mar 9, 1982·1 cites·3 claims
Join the waitlist — get patent alerts
Get an alert when PACIFIC ROLLER DIE CO INC files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →