A. AHLSTROM OSAKEYHTIO

Patent Owner

Stats

68 total patents issued
0 Total Apps Published
Mar 12, 2002 most recent publication

Details

68 Issued Patents
0 Issued in last 3 years
0 Published in last 3 years

557 Total Citation Count
Jul 22, 1977 Earliest Filing
64 Expired/Abandoned Patents

Technologies

D21C PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR20.25

B01D SEPARATION 10.00

B01F MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING 10.02

		# of Patents	% of Class
D21C	PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
	Owner Portfolio	2	0.25
	ANDRITZ INC.	53	6.58
	METSO PAPER SWEDEN AKTIEBOLAG	53	6.58
	INTERNATIONAL PAPER COMPANY	25	3.11
	GLV FINANCE HUNGARY KFT., ACTING THROUGH ITS LUXEMBOURG BRANCH	22	2.73
	METSO FIBER KARLSTAD AB	21	2.61
B01D	SEPARATION
	Owner Portfolio	1	0.00
	DONALDSON COMPANY, INC.	259	1.15
	PALL CORPORATION	209	0.93
	3M INNOVATIVE PROPERTIES COMPANY	190	0.84
	AIR PROD & CHEM INC	189	0.84
	AGILENT TECHNOLOGIES, INC.	186	0.83
B01F	MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
	Owner Portfolio	1	0.02
	SULZER CHEMTECH AG	55	1.29
	UOP LLC	33	0.78
	KOCH-GLITSCH, LP	25	0.59
	FUJIFILM CORPORATION	25	0.59
	SUNBEAM PRODUCTS, INC.	21	0.49

Top Patents (by citation)

4,330,502 Fluidized bed reactorJun 16, 80May 18, 82[F27B, B01J]33

4,534,151 Method and apparatus for packaging paper rollsJul 13, 83Aug 13, 85[B65B]32

4,529,520 Screen plateMar 07, 83Jul 16, 85[B01D]31

4,239,072 Method and apparatus for edge-trimming a boardAug 29, 78Dec 16, 80[B27C, B27B]29

4,500,835 Method and apparatus for detecting grain direction in wood, particularly in lumberJun 01, 82Feb 19, 85[G01R]27

4,449,557 Method and apparatus for sawing a piece of timberJun 01, 82May 22, 84[B27B]27

4,311,670 Fluidized bed reactor systemJan 04, 80Jan 19, 82[B01J]26

4,273,562 Method and apparatus for pumping gaseous liquids and separating the gaseous components therefromOct 01, 79Jun 16, 81[F03B, B01D]23

4,338,147 Method and apparatus for winding a web upon a core having a stripe of hot-melt adhesiveNov 03, 80Jul 06, 82[B65H]17

6,103,128 Method and apparatus for mixing gas with liquidApr 27, 99Aug 15, 00[D21C, C02F, B03D, B01F]16

Recent Publications

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