Assignee
QLH USA INC
US·4 granted patents·46 citations·filing 1993–1993
Top patents by PatentIndex Score
4 records- 0156US5308178AWriting instrumentQLH USA INC·Filed 1993·Granted May 3, 1994·20 cites·11 claims
- 0247US5287823ARemovable page markerQLH USA INC·Filed 1993·Granted Feb 22, 1994·16 cites·4 claims
- 0329US5377359AFood spill catching deviceQLH USA INC·Filed 1993·Granted Jan 3, 1995·7 cites·1 claims
- 0426US5364056ACombined book holder and bookmarkQLH USA INC·Filed 1993·Granted Nov 15, 1994·3 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when QLH USA 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 →