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Patent Assignment Details
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Reel/Frame:012785/0528   Pages: 10
Recorded: 04/16/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Total properties: 54
1
Patent #:
Issue Dt:
12/07/1993
Application #:
08019485
Filing Dt:
02/19/1993
Title:
CYCLONIC BACK-PACK VACUUM CLEANER
2
Patent #:
Issue Dt:
10/25/1994
Application #:
08024963
Filing Dt:
03/02/1993
Title:
RELEASE MECHANISM FOR USE WITH A VACUUM CLEANING HOSE
3
Patent #:
Issue Dt:
11/02/1999
Application #:
08685584
Filing Dt:
07/24/1996
Title:
LIFT OFF MECHANISM FOR A VACUUM CLEANER
4
Patent #:
Issue Dt:
05/09/2000
Application #:
09078620
Filing Dt:
05/14/1998
Title:
OZONE GENERATOR
5
Patent #:
Issue Dt:
12/11/2001
Application #:
09227196
Filing Dt:
01/08/1999
Title:
PRANDTL LAYER TURBINE
6
Patent #:
Issue Dt:
07/17/2001
Application #:
09227197
Filing Dt:
01/08/1999
Title:
PRANDTL LAYER TURBINE
7
Patent #:
Issue Dt:
05/01/2001
Application #:
09227198
Filing Dt:
01/08/1999
Title:
PRANDTL LAYER TURBINE
8
Patent #:
Issue Dt:
05/29/2001
Application #:
09227204
Filing Dt:
01/08/1999
Title:
PRANDTL LAYER TURBINE
9
Patent #:
Issue Dt:
01/01/2002
Application #:
09239860
Filing Dt:
01/29/1999
Title:
CLEANER HEAD FOR A VACUUM CLEANER
10
Patent #:
Issue Dt:
05/22/2001
Application #:
09240616
Filing Dt:
02/01/1999
Title:
METHOD AND APPARATUS FOR MEASURING THE DEGREE OF TREATMENT OF A MEDIUM BY A GAS
11
Patent #:
Issue Dt:
12/05/2000
Application #:
09240618
Filing Dt:
02/01/1999
Title:
METHOD AND APPARATUS FOR CONCENTRATING A GAS USING A SINGLE STAGE ADSORPTION ZONE
12
Patent #:
Issue Dt:
11/28/2000
Application #:
09240619
Filing Dt:
02/01/1999
Title:
METHOD AND APPARATUS FOR PURIFYING WATER
13
Patent #:
Issue Dt:
04/17/2001
Application #:
09270110
Filing Dt:
03/16/1999
Title:
METHOD AND APPARATUS FOR CONCENTRATING A GAS USING A SINGLE STAGE ADSORPTION CHAMBER
14
Patent #:
Issue Dt:
12/19/2000
Application #:
09270111
Filing Dt:
03/16/1999
Title:
METHOD AND APPARATUS FOR CONCENTRATING A GAS USING A SINGLE STAGE ADSORPTION ZONE
15
Patent #:
Issue Dt:
09/26/2000
Application #:
09322916
Filing Dt:
06/01/1999
Title:
PRESSURE BASED SENSING MEANS FOR ADJUSTING THE HEIGHT OF AN AGITATOR IN A VACUUM CLEANER HEAD
16
Patent #:
Issue Dt:
07/17/2001
Application #:
09322917
Filing Dt:
06/01/1999
Title:
FLOATING AGITATOR HOUSING FOR A VACUUM CLEANER HEAD
17
Patent #:
Issue Dt:
08/08/2000
Application #:
09322987
Filing Dt:
06/01/1999
Title:
METHOD AND APPARATUS FOR INCREASING THE AIR FLOW INTO A VACUUM CLEANER HEAD
18
Patent #:
Issue Dt:
01/09/2001
Application #:
09322988
Filing Dt:
06/01/1999
Title:
METHOD AND APPARATUS FOR REDUCING THE SIZE OF ELONGATE PARTICULATE MATERIAL IN A VACUUM CLEANER HEAD
19
Patent #:
Issue Dt:
06/12/2001
Application #:
09342913
Filing Dt:
06/30/1999
Title:
FLOATING BRUSH FOR A VACUUM CLEANER HEAD
20
Patent #:
Issue Dt:
09/24/2002
Application #:
09350929
Filing Dt:
07/12/1999
Title:
METHOD AND APPARATUS FOR MEASURING THE CONCENTRATION OF A GAS
21
Patent #:
Issue Dt:
01/16/2001
Application #:
09353443
Filing Dt:
07/14/1999
Title:
CONSTRUCTION OF A VACUUM CLEANER HEAD
22
Patent #:
Issue Dt:
08/08/2000
Application #:
09361136
Filing Dt:
07/27/1999
Title:
HANDLE FOR VACUUM CLEANER
23
Patent #:
Issue Dt:
08/15/2000
Application #:
09361207
Filing Dt:
07/27/1999
Title:
ROTATABLE HANDLE FOR A VACUUM CLEANER
24
Patent #:
Issue Dt:
03/26/2002
Application #:
09417836
Filing Dt:
10/14/1999
Title:
CONSTRUCTION OF A WATER TREATMENT RESERVOIR FOR A DOMESTIC WATER TREATMENT APPLIANCE
25
Patent #:
Issue Dt:
02/20/2001
Application #:
09442987
Filing Dt:
11/19/1999
Title:
OZONE GENERATOR
26
Patent #:
Issue Dt:
08/28/2001
Application #:
09450758
Filing Dt:
11/30/1999
Title:
BLADE FOR FLUID PUMP
27
Patent #:
Issue Dt:
08/28/2001
Application #:
09452429
Filing Dt:
12/01/1999
Title:
OZONE SENSOR AND METHOD FOR USE OF SAME IN WATER PURIFICATION SYSTEM
28
Patent #:
Issue Dt:
05/07/2002
Application #:
09478891
Filing Dt:
01/07/2000
Title:
Vacuum clearner utilizing electrostatic filtration and electrostatic preciptitator for use therein
29
Patent #:
Issue Dt:
11/19/2002
Application #:
09478901
Filing Dt:
01/07/2000
Title:
VACCUM CLEANER UTILIZING ELECTROSTATIC FILTRATION AND ELECTROSTATIC PRECIPITATOR FOR USE THEREIN
30
Patent #:
Issue Dt:
08/14/2001
Application #:
09594715
Filing Dt:
06/16/2000
Title:
Ozonation process
31
Patent #:
Issue Dt:
02/05/2002
Application #:
09595175
Filing Dt:
06/16/2000
Title:
Method and apparatus of particle transfer in multi-stage particle separators
32
Patent #:
Issue Dt:
08/31/2004
Application #:
09679353
Filing Dt:
10/05/2000
Title:
UPRIGHT VACUUM CLEANER WITH CYCLONIC AIR FLOW
33
Patent #:
Issue Dt:
11/06/2001
Application #:
09706738
Filing Dt:
11/07/2000
Title:
Method for measuring the degree of treatment of a medium by a gas
34
Patent #:
Issue Dt:
03/04/2003
Application #:
09758246
Filing Dt:
01/12/2001
Publication #:
Pub Dt:
10/11/2001
Title:
CONSTRUCTION OF A WATER TREATMENT APPLIANCE
35
Patent #:
NONE
Issue Dt:
Application #:
09758247
Filing Dt:
01/12/2001
Publication #:
Pub Dt:
11/15/2001
Title:
Ozone generator
36
Patent #:
NONE
Issue Dt:
Application #:
09758250
Filing Dt:
01/12/2001
Publication #:
Pub Dt:
10/11/2001
Title:
VACUUM CLEANER CLEANING HEAD
37
Patent #:
Issue Dt:
12/10/2002
Application #:
09758251
Filing Dt:
01/12/2001
Publication #:
Pub Dt:
05/23/2002
Title:
SENSOR FOR A WATER TREATMENT APPARATUS
38
Patent #:
NONE
Issue Dt:
Application #:
09758252
Filing Dt:
01/12/2001
Publication #:
Pub Dt:
05/23/2002
Title:
METHOD AND APPARATUS FOR CONTROLLING A HOUSEHOLD WATER PURIFIER
39
Patent #:
NONE
Issue Dt:
Application #:
09758253
Filing Dt:
01/12/2001
Publication #:
Pub Dt:
05/23/2002
Title:
Filter assembly for a household water purifier
40
Patent #:
Issue Dt:
12/10/2002
Application #:
09758254
Filing Dt:
01/12/2001
Publication #:
Pub Dt:
05/23/2002
Title:
OZONE GENERATOR
41
Patent #:
Issue Dt:
11/05/2002
Application #:
09758255
Filing Dt:
01/12/2001
Publication #:
Pub Dt:
05/23/2002
Title:
METHOD AND APPARATUS FOR MONITORING AN OZONE GENERATOR IN A HOUSEHOLD WATER PURIFIER
42
Patent #:
Issue Dt:
02/11/2003
Application #:
09758256
Filing Dt:
01/12/2001
Publication #:
Pub Dt:
04/11/2002
Title:
OZONATION PROCESS
43
Patent #:
Issue Dt:
12/10/2002
Application #:
09758262
Filing Dt:
01/12/2001
Publication #:
Pub Dt:
10/11/2001
Title:
CONSTRUCTION OF A WATER TREATMENT RESERVOIR FOR A DOMESTIC WATER TREATMENT APPLIANCE
44
Patent #:
Issue Dt:
05/27/2003
Application #:
09849525
Filing Dt:
05/07/2001
Publication #:
Pub Dt:
03/07/2002
Title:
PRESSURE SWING CONTACTOR FOR THE TREATMENT OF A LIQUID WITH A GAS
45
Patent #:
NONE
Issue Dt:
Application #:
09917740
Filing Dt:
07/31/2001
Publication #:
Pub Dt:
11/07/2002
Title:
Vacuum cleaner
46
Patent #:
Issue Dt:
12/26/1995
Application #:
29021901
Filing Dt:
04/25/1994
Title:
VACUUM CLEANER
47
Patent #:
Issue Dt:
04/06/1999
Application #:
29080000
Filing Dt:
11/28/1997
Title:
CHAMBER FOR A VACUUM CLEANER
48
Patent #:
Issue Dt:
04/06/1999
Application #:
29080003
Filing Dt:
11/28/1997
Title:
CHAMBER FOR A VACUUM CLEANER
49
Patent #:
Issue Dt:
04/06/1999
Application #:
29080004
Filing Dt:
11/28/1997
Title:
CHAMBER FOR A VACUUM CLEANER
50
Patent #:
Issue Dt:
12/07/1999
Application #:
29088291
Filing Dt:
05/20/1998
Title:
VACUUM CLEANER
51
Patent #:
Issue Dt:
09/21/1999
Application #:
29089256
Filing Dt:
06/11/1998
Title:
WATER FILTER
52
Patent #:
Issue Dt:
05/23/2000
Application #:
29097743
Filing Dt:
12/11/1998
Title:
WATER FILTER
53
Patent #:
Issue Dt:
03/27/2001
Application #:
29114155
Filing Dt:
11/19/1999
Title:
CARAFE
54
Patent #:
Issue Dt:
08/29/2000
Application #:
29114156
Filing Dt:
11/19/1999
Title:
WATER FILTER
Assignor
1
Exec Dt:
02/26/2002
Assignee
1
WELLAND
1110 HANSLER ROAD
ONARIO L3B 5S1, CANADA
Correspondence name and address
PHILIP C. MENDES DA COSTA
40 KING STREET WEST
BOX 401
TORONTO, ONTARIO M5H 3Y2 CANADA

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