Assignee
CHALLENGE MACHINERY CO
US·6 granted patents·186 citations·filing 1977–1997
Top patents by PatentIndex Score
6 records- 0188US5945929ATouch control potentiometerCHALLENGE MACHINERY CO·Filed 1997·Granted Aug 31, 1999·68 cites·10 claims
- 0271US4429889AStacking cartCHALLENGE MACHINERY CO·Filed 1982·Granted Feb 7, 1984·23 cites·21 claims
- 0371US4146942APaper padding or tableting pressCHALLENGE MACHINERY CO·Filed 1977·Granted Apr 3, 1979·29 cites·20 claims
- 0469US6012367ADocument trimming apparatusCHALLENGE MACHINERY CO·Filed 1997·Granted Jan 11, 2000·30 cites·22 claims
- 0563US5221402AFolding machine sprayer and fold plate and method of use thereforeCHALLENGE MACHINERY CO·Filed 1991·Granted Jun 22, 1993·28 cites·22 claims
- 0638US5694823ADocument trimming apparatusCHALLENGE MACHINERY CO·Filed 1994·Granted Dec 9, 1997·8 cites·8 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →