Assignee
NORTHWESTERN CORP
US·6 granted patents·1 pending application·55 citations·filing 1991–2011
Top patents by PatentIndex Score
7 records- 0158US6857710B2Secure merchandise-vending machineNORTHWESTERN CORP·Filed 2001·Granted Feb 22, 2005·6 cites·3 claims
- 0246US5190133ABulk vending machine apparatusNORTHWESTERN CORP·Filed 1991·Granted Mar 2, 1993·19 cites·35 claims
- 0339US5339937ACoin mechanism for bulk vending machineNORTHWESTERN CORP·Filed 1991·Granted Aug 23, 1994·10 cites·20 claims
- 0438US2011253501A1Coin mechanism for a bulk vending machineNORTHWESTERN CORP·Filed 2011·Application pending·0 cites
- 0535US6182859B1Brush housing for bulk vending machineNORTHWESTERN CORP·Filed 1998·Granted Feb 6, 2001·8 cites·19 claims
- 0634US5509521ACoin mechanism for vending machine for handling magnetic coinsNORTHWESTERN CORP·Filed 1993·Granted Apr 23, 1996·6 cites·18 claims
- 0733US6079540ACoin mechanism for bulk vending machineNORTHWESTERN CORP·Filed 1998·Granted Jun 27, 2000·6 cites·39 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →