Assignee
NAT ROLLING MILLS INC
US·16 granted patents·450 citations·filing 1985–1993
Top patents by PatentIndex Score
16 records- 0189US5046294APerimeter clipNAT ROLLING MILLS INC·Filed 1990·Granted Sep 10, 1991·89 cites·6 claims
- 0283US4912894AInterlocking cross teeNAT ROLLING MILLS INC·Filed 1989·Granted Apr 3, 1990·56 cites·2 claims
- 0382US4794745ATier drop grid systemNAT ROLLING MILLS INC·Filed 1986·Granted Jan 3, 1989·67 cites·12 claims
- 0475US4827681AInterlocking cross teeNAT ROLLING MILLS INC·Filed 1987·Granted May 9, 1989·37 cites·1 claims
- 0575US4713919ALaser welded ceiling grid membersNAT ROLLING MILLS INC·Filed 1986·Granted Dec 22, 1987·41 cites·21 claims
- 0664US4785603AInterlocking cross teeNAT ROLLING MILLS INC·Filed 1986·Granted Nov 22, 1988·30 cites·4 claims
- 0761US4916877AFire strip constructionNAT ROLLING MILLS INC·Filed 1989·Granted Apr 17, 1990·26 cites·1 claims
- 0861US4864791AFire stripNAT ROLLING MILLS INC·Filed 1988·Granted Sep 12, 1989·27 cites·5 claims
- 0946US5390456ADecorative suspended ceilingNAT ROLLING MILLS INC·Filed 1993·Granted Feb 21, 1995·12 cites·5 claims
- 1045US4727703ASuspended ceiling grid structureNAT ROLLING MILLS INC·Filed 1986·Granted Mar 1, 1988·13 cites·8 claims
- 1141US4926607ACompression legNAT ROLLING MILLS INC·Filed 1989·Granted May 22, 1990·12 cites·4 claims
- 1241US4606166AFire-rated beam with expansion relief sectionNAT ROLLING MILLS INC·Filed 1985·Granted Aug 19, 1986·16 cites·4 claims
- 1334US5241798ADecorative suspended ceilingNAT ROLLING MILLS INC·Filed 1991·Granted Sep 7, 1993·8 cites·6 claims
- 1433US5279033AMethod of making a beam for a decorative suspended ceilingNAT ROLLING MILLS INC·Filed 1993·Granted Jan 18, 1994·7 cites·2 claims
- 1532US4890428APartition clipNAT ROLLING MILLS INC·Filed 1988·Granted Jan 2, 1990·5 cites·3 claims
- 1631US4955134AMethod of forming a spring-like fire stripNAT ROLLING MILLS INC·Filed 1989·Granted Sep 11, 1990·4 cites·4 claims
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →