Assignee
WEST PENN PLASTIC INC
US·3 granted patents·177 citations·filing 1987–2001
Technology mixB65D3
Top patents by PatentIndex Score
3 records- 0189US4711363ATamper evidence closureWEST PENN PLASTIC INC·Filed 1987·Granted Dec 8, 1987·97 cites·6 claims
- 0282US6540114B1Dual tamper evident dispensing closureWEST PENN PLASTIC INC·Filed 2001·Granted Apr 1, 2003·39 cites·7 claims
- 0367US4991733AClosure and container having pass over inter-engaging ratchet teethWEST PENN PLASTIC INC·Filed 1989·Granted Feb 12, 1991·41 cites·5 claims
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