skip navigationU S P T O SealUnited States Patent and Trademark Office AOTW logo
Home|Site Index|Search|Guides|Contacts|eBusiness|eBiz alerts|News|Help
Assignments on the Web > Patent Query
Patent Assignment Details
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Reel/Frame:012775/0276   Pages: 32
Recorded: 03/25/2002
Conveyance: SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).
Total properties: 39
1
Patent #:
4421970
Issue Dt:
12/20/1983
Application #:
06365466
Filing Dt:
04/05/1982
Title:
COOLING AND HEIGHT SENSING SYSTEM FOR A PLASMA ARC CUTTING TOOL
2
Patent #:
4791268
Issue Dt:
12/13/1988
Application #:
07009508
Filing Dt:
01/30/1987
Title:
ARC PLASMA TORCH AND METHOD USING CONTACT STARTING
3
Patent #:
4861962
Issue Dt:
08/29/1989
Application #:
07203440
Filing Dt:
06/07/1988
Title:
NOZZLE SHIELD FOR A PLASMA ARC TORCH
4
Patent #:
4902871
Issue Dt:
02/20/1990
Application #:
07249407
Filing Dt:
09/26/1988
Title:
APPARATUS AND PROCESS FOR COOLING A PLASMA ARC ELECTRODE
5
Patent #:
5120930
Issue Dt:
06/09/1992
Application #:
07395266
Filing Dt:
08/17/1989
Title:
PLASMA ARC TORCH WITH IMPROVED NOZZLE SHIELD AND STEP FLOW
6
Patent #:
5074802
Issue Dt:
12/24/1991
Application #:
07406035
Filing Dt:
09/12/1989
Title:
PNEUMATIC-ELECTRIC QUICK DISCONNECT CONNECTOR FOR A PLASMA ARC TORCH
7
Patent #:
5070227
Issue Dt:
12/03/1991
Application #:
07513780
Filing Dt:
04/24/1990
Title:
PROCESS AND APPARATUS FOR REDUCING ELECTRODE WEAR IN A PLASMA ARC TORCH
8
Patent #:
5170033
Issue Dt:
12/08/1992
Application #:
07682991
Filing Dt:
04/12/1991
Title:
SWIRL RING AND FLOW CONTROL PROCESS FOR A PLASMA ARC TORCH
9
Patent #:
5166494
Issue Dt:
11/24/1992
Application #:
07682992
Filing Dt:
04/12/1991
Title:
PROCESS AND APPARATUS FOR REDUCING ELECTRODE WEAR IN A PLASMA ARC TORCH
10
Patent #:
5132512
Issue Dt:
07/21/1992
Application #:
07718953
Filing Dt:
06/21/1991
Title:
NOZZLE SHIELD FOR PLASMA ARC TORCH
11
Patent #:
5396043
Issue Dt:
03/07/1995
Application #:
07753395
Filing Dt:
08/30/1991
Title:
PLASMA ARC CUTTING PROCESS AND APPARATUS USING AN OXYGEN-RICH GAS SHIELD
12
Patent #:
5317126
Issue Dt:
05/31/1994
Application #:
07820278
Filing Dt:
01/14/1992
Title:
NOZZLE AND METHOD OF OPERATION FOR A PLASMA ARC TORCH
13
Patent #:
5310988
Issue Dt:
05/10/1994
Application #:
07886067
Filing Dt:
05/20/1992
Title:
ELECTRODE FOR HIGH CURRENT DENSITY PLASMA ARC TORCH
14
Patent #:
5414236
Issue Dt:
05/09/1995
Application #:
07989183
Filing Dt:
12/11/1992
Title:
PROCESS FOR HIGH QUALITY PLASMA ARC CUTTING OF STAINLESS STEEL AND ALUMINUM
15
Patent #:
5380976
Issue Dt:
01/10/1995
Application #:
08024416
Filing Dt:
03/01/1993
Title:
PROCESS FOR HIGH QUALITY PLASMA ARC AND LASER CUTTING OF STAINLESS STEEL AN ALUMINUM
16
Patent #:
5416297
Issue Dt:
05/16/1995
Application #:
08039898
Filing Dt:
03/30/1993
Title:
PLASMA ARC TORCH IGNITION CIRCUIT AND METHOD
17
Patent #:
5464962
Issue Dt:
11/07/1995
Application #:
08283070
Filing Dt:
07/29/1994
Title:
ELECTRODE FOR A PLASMA ARC TORCH
18
Patent #:
5558786
Issue Dt:
09/24/1996
Application #:
08319470
Filing Dt:
10/06/1994
Title:
PROCESS FOR HIGH QUALITY PLASMA ARC AND LASER CUTTING OF STAINLESS STEEL AND ALUMINUM
19
Patent #:
5548097
Issue Dt:
08/20/1996
Application #:
08361730
Filing Dt:
12/22/1994
Title:
PLASMA ARC CUTTING TORCH IGNITION CIRCUIT AND METHOD PROVIDING A FORCED ARC TRANSFER FUNCTION
20
Patent #:
5624586
Issue Dt:
04/29/1997
Application #:
08368329
Filing Dt:
01/04/1995
Title:
ALIGNMENT DEVICE AND METHOD FOR A PLASMA ARC TORCH SYSTEM
21
Patent #:
5591357
Issue Dt:
01/07/1997
Application #:
08394707
Filing Dt:
02/27/1995
Title:
PLASMA ARC CUTTING PROCESS AND APPARATUS USING AN OXYGEN-RICH GAS SHIELD
22
Patent #:
5620617
Issue Dt:
04/15/1997
Application #:
08544987
Filing Dt:
10/30/1995
Title:
CIRCUITRY AND METHOD FOR MAINTAINING A PLASMA ARC DURING OPERATION OF A PLASMA ARC TORCH SYSTEM
23
Patent #:
5601734
Issue Dt:
02/11/1997
Application #:
08554638
Filing Dt:
11/06/1995
Title:
ELECTRODE FOR A PLASMA ARC TORCH
24
Patent #:
5695662
Issue Dt:
12/09/1997
Application #:
08595797
Filing Dt:
02/02/1996
Title:
PLASMA ARC CUTTING PROCESS AND APPARATUS USING AN OXYGEN-RICH GAS SHIELD
25
Patent #:
5760363
Issue Dt:
06/02/1998
Application #:
08707227
Filing Dt:
09/03/1996
Title:
APPARATUS AND METHOD FOR STARTING AND STOPPING A PLASMA ARC TORCH USED FOR MECHANIZED CUTTING AND MARKING APPLICATIONS
26
Patent #:
5773788
Issue Dt:
06/30/1998
Application #:
08707247
Filing Dt:
09/03/1996
Title:
GAS MIXTURES FOR PLASMA ARC TORCH CUTTING AND MARKING SYSTEMS
27
Patent #:
5653896
Issue Dt:
08/05/1997
Application #:
08711162
Filing Dt:
09/09/1996
Title:
PROCESS FOR HIGH QUALITY PLASMA ARC AND LASER CUTTING OF STAINLESS STEEL AND ALUMINUM
28
Patent #:
5897795
Issue Dt:
04/27/1999
Application #:
08727019
Filing Dt:
10/08/1996
Title:
INTEGRAL SPRING CONSUMABLES FOR PLASMA ARC TORCH USING BLOW FORWARD CONTACT STARTING SYSTEM
29
Patent #:
5994663
Issue Dt:
11/30/1999
Application #:
08727028
Filing Dt:
10/08/1996
Title:
PLASMA ARC TORCH AND METHOD USING BLOW FORWARD CONTACT STARTING SYSTEM
30
Patent #:
5841095
Issue Dt:
11/24/1998
Application #:
08736707
Filing Dt:
10/28/1996
Title:
APPARATUS AND METHOD FOR IMPROVED ASSEMBLY CONCENTRICITY IN A PLASMA ARC TORCH
31
Patent #:
5900169
Issue Dt:
05/04/1999
Application #:
08870476
Filing Dt:
06/06/1997
Title:
SAFETY CIRCUIT FOR A BLOW FORWARD CONTACT START PLASMA ARC TORCH
32
Patent #:
5866872
Issue Dt:
02/02/1999
Application #:
08900309
Filing Dt:
07/25/1997
Title:
PLASMA ARC TORCH POSITION CONTROL
33
Patent #:
5886315
Issue Dt:
03/23/1999
Application #:
08904694
Filing Dt:
08/01/1997
Title:
BLOW FORWARD CONTACT START PLASMA ARC TORCH WITH DISTRIBUTED NOZZLE SUPPORT
34
Patent #:
6084199
Issue Dt:
07/04/2000
Application #:
08905001
Filing Dt:
08/01/1997
Title:
PLASMA ARC TORCH WITH VENTED FLOW NOZZLE RETAINER
35
Patent #:
6028287
Issue Dt:
02/22/2000
Application #:
09020621
Filing Dt:
02/09/1998
Title:
PLASMA ARC TORCH POSITION CONTROL
36
Patent #:
5977510
Issue Dt:
11/02/1999
Application #:
09067770
Filing Dt:
04/27/1998
Title:
NOZZLE FOR A PLASMA ARC TORCH WITH AN EXIT ORIFICE HAVING AN INLET RADIUS AND AN EXTENDED LENGHT TO DIAMETHER RATIO
37
Patent #:
6130399
Issue Dt:
10/10/2000
Application #:
09119163
Filing Dt:
07/20/1998
Title:
ELECTRODE FOR A PLASMA ARC TORCH HAVING AN IMPROVED INSERT CONFIGURATION
38
Patent #:
6207923
Issue Dt:
03/27/2001
Application #:
09186791
Filing Dt:
11/05/1998
Title:
PLASMA ARC TORCH TIP PROVIDING A SUBSTANTIALLY COLUMNAR SHIELD FLOW
39
Patent #:
6133543
Issue Dt:
10/17/2000
Application #:
09187274
Filing Dt:
11/06/1998
Title:
SYSTEM AND METHOD FOR DUAL THRESHOLD SENSING IN A PLASMA ARC TORCH
Assignor
1
HYPERTHERM, INC.
Exec Dt:
11/30/2001
Assignee
1
BROWN BROTHERS HARRIMAN & CO.
40 WATER STREET
BOSTON, MASSACHUSETTS 02109
Correspondence name and address
GOULSTON & STORRS
DENIS KING
400 ATLANTIC AVENUE
BOSTON, MA 02110

Search Results as of: 05/27/2024 07:01 AM
If you have any comments or questions concerning the data displayed, contact PRD / Assignments at 571-272-3350. v.2.6
Web interface last modified: August 25, 2017 v.2.6
| .HOME | INDEX| SEARCH | eBUSINESS | CONTACT US | PRIVACY STATEMENT