IFI
Patent Intelligence & Technology Report
Class Distribution for 1990-1999
428 - STOCK MATERIAL OR MISCELLANEOUS ARTICLES (IPC B32B)
1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 Total
PPG INDUSTRIES INC
5 20 11 7 9 7 13 10 15 19 116
HITACHI MAXELL LTD JP
7 7 8 7 2 3 7 9 14 9 73
IMPERIAL CHEMICAL INDUSTRIES LTD GB
3 3 6 5 6 6 9 6 11 12 67
NITTO DENKO CORP JP
11 7 8 3 7 10 6 5 1 5 63
CHISSO CORP JP
7 8 7 4 3 1 6 3 5 0 44
SHOWA DENKO K K JP
4 4 4 2 1 1 2 6 4 5 33
HITACHI CHEMICAL CO LTD JP
8 2 5 3 4 0 3 1 4 1 31
RHONE-POULENC CHIMIE FR
0 3 4 0 0 2 3 6 6 4 28
DEGUSSA DE
5 0 1 1 4 7 1 1 2 2 24
AEROSPATIALE SOC NATIONALE INDUSTRIELLE FR
3 2 2 3 3 4 1 3 1 1 23
IDEMITSU KOSAN CO LTD JP
2 1 1 3 5 5 1 4 1 0 23
MORTON INTERNATIONAL INC
5 4 4 3 2 2 1 1 0 0 22
DAIKIN KOGYO CO LTD JP
3 4 2 2 0 1 3 2 2 2 21
MITSUI MINING & SMELTING CO LTD JP
4 1 2 3 1 1 1 1 1 1 16
DSM N V NL
1 5 0 1 0 4 2 0 0 0 13
WACKER-CHEMIE GMBH DE
3 0 2 1 0 0 0 0 0 2 8
NATIONALE D'ETUDE ET DE CONSTR DE MOTEURS D'AVIATION FR
2 1 0 0 2 0 0 1 1 0 7
DEUTSCHE FORSCHUNGSANSTALT FUR LUFT- UND RAUMFAHRT E V DE
2 1 0 1 0 0 0 1 0 0 5
BOC GROUP INC THE
0 0 1 0 2 0 0 0 0 1 4
INA WALZLAGER SCHAEFFLER OHG DE
0 0 1 0 1 0 0 1 0 1 4
NATIONAL RESEARCH COUNCIL OF CANADA CA
0 0 1 3 0 0 0 0 0 0 4
READ-RITE CORP
2 2 0 0 0 0 0 0 0 0 4
RISO KAGAKU CORP JP
2 0 0 2 0 0 0 0 0 0 4
TOSHIBA KIKAI K K JP
0 1 0 0 1 1 1 0 0 0 4
ENGELHARD CORP
1 0 0 0 0 0 0 1 0 1 3
Total 80 76 70 54 53 55 60 62 68 66 644