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Public Service Company of Colorado INC
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Denver, CO, US
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Patents Grants
last 30 patents
Information
Patent Grant
Device and process for installation of encoder receiver transmitter...
Patent number
6,435,042
Issue date
Aug 20, 2002
Tru-Check INC
Paul D Puseman
G01 - MEASURING TESTING
Information
Patent Grant
Illuminated natural gas flow display panel assembly
Patent number
5,311,686
Issue date
May 17, 1994
Public Service Company of Colorado
Kenneth K. Christensen
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Method and apparatus for temporarily sealing off pipelines
Patent number
5,285,806
Issue date
Feb 15, 1994
Public Service Company of Colorado
Daniel A. Ortega
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Integrated process and apparatus for control of pollutants in coal-...
Patent number
5,165,903
Issue date
Nov 24, 1992
Public Service Company of Colorado
Terry G. Hunt
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Channel discriminator circuit for paging stations
Patent number
4,969,852
Issue date
Nov 13, 1990
Public Service Company of Colorado
Ray W. Osterwald
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Modular I/O equipment for controlling field devices directly or as...
Patent number
4,086,568
Issue date
Apr 25, 1978
Public Service Company of Colorado
Fred S. Watts
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
75347991 - CADENCE
Serial number
75347991
Registration number
2379857
Filing date
Aug 27, 1997
PUBLIC SERVICE COMPANY OF COLORADO
39 - Transport
Information
Trademark
75289664 - NUMEGA
Serial number
75289664
Filing date
May 9, 1997
PUBLIC SERVICE COMPANY OF COLORADO
37 - Building construction
Information
Trademark
75197878 - SOLARSOURCE
Serial number
75197878
Registration number
2155732
Filing date
Nov 14, 1996
PUBLIC SERVICE COMPANY OF COLORADO
35 - Advertising
Information
Trademark
75197880 - WINDSOURCE
Serial number
75197880
Registration number
2157691
Filing date
Nov 14, 1996
PUBLIC SERVICE COMPANY OF COLORADO
39 - Transport
Information
Trademark
75100561 - IDEAL LIVING
Serial number
75100561
Filing date
May 8, 1996
PUBLIC SERVICE COMPANY OF COLORADO
36 - Insurance
Information
Trademark
75029415 - NEW CENTURY ENERGIES
Serial number
75029415
Filing date
Dec 7, 1995
PUBLIC SERVICE COMPANY OF COLORADO
39 - Transport
Information
Trademark
75005768 - COMPASS ENERGY
Serial number
75005768
Filing date
Oct 16, 1995
PUBLIC SERVICE COMPANY OF COLORADO
39 - Transport
Information
Trademark
75000325 - BUSINESS ENERGY EDGE
Serial number
75000325
Filing date
Oct 2, 1995
PUBLIC SERVICE COMPANY OF COLORADO
35 - Advertising
Information
Trademark
74722539 - IDEAL LIVING
Serial number
74722539
Filing date
Aug 29, 1995
PUBLIC SERVICE COMPANY OF COLORADO
36 - Insurance
Information
Trademark
74721213 - IDEAL LIVING
Serial number
74721213
Registration number
2070559
Filing date
Aug 28, 1995
PUBLIC SERVICE COMPANY OF COLORADO
37 - Building construction
Information
Trademark
74721298 - IDEAL LIVING
Serial number
74721298
Filing date
Aug 28, 1995
PUBLIC SERVICE COMPANY OF COLORADO
42 - Scientific and technological services and research and design relating thereto
Information
Trademark
74638335 - E PRIME
Serial number
74638335
Registration number
2002329
Filing date
Feb 27, 1995
PUBLIC SERVICE COMPANY OF COLORADO
35 - Advertising
Information
Trademark
74638336 - E
Serial number
74638336
Registration number
2002330
Filing date
Feb 27, 1995
PUBLIC SERVICE COMPANY OF COLORADO
35 - Advertising
Information
Trademark
74216926 - IDEAL ENERGY HOME PUBLIC SERVICE
Serial number
74216926
Registration number
1828641
Filing date
Oct 30, 1991
PUBLIC SERVICE COMPANY OF COLORADO
42 - Scientific and technological services and research and design relating thereto
Information
Trademark
74198584 - THE BUSINESS ENERGY EDGE
Serial number
74198584
Filing date
Aug 27, 1991
PUBLIC SERVICE COMPANY OF COLORADO
35 - Advertising
Information
Trademark
73494025 - WESTGAS
Serial number
73494025
Registration number
1434969
Filing date
Aug 9, 1984
WESTERN GAS SUPPLY COMPANY
39 - Transport
Information
Trademark
73494029 - CHEYENNE LIGHT
Serial number
73494029
Registration number
1382712
Filing date
Aug 9, 1984
CHEYENNE LIGHT, FUEL AND POWER COMPANY
39 - Transport
Information
Trademark
73494024 - HOME LIGHT
Serial number
73494024
Registration number
1378469
Filing date
Aug 9, 1984
HOME LIGHT AND POWER COMPANY
39 - Transport
Information
Trademark
73494026 - PUBLIC SERVICE
Serial number
73494026
Registration number
1384692
Filing date
Aug 9, 1984
PUBLIC SERVICE COMPANY OF COLORADO
39 - Transport
Information
Trademark
73494028 - FUELCO
Serial number
73494028
Registration number
1441497
Filing date
Aug 9, 1984
FUEL RESOURCES DEVELOPMENT CO.
39 - Transport
Information
Trademark
72200285
Serial number
72200285
Registration number
785184
Filing date
Aug 20, 1964
PUBLIC SERVICE COMPANY OF COLORADO
14 - Precious metals and their alloys and goods in precious metals or coated therewith, not included in other classes
Information
Trademark
72155187
Serial number
72155187
Registration number
772845
Filing date
Oct 15, 1962
PUBLIC SERVICE COMPANY OF COLORADO
16 - Paper, cardboard and goods made from these materials, not included in other classes
Information
Trademark
72155188 - PUBLIC SERVICE CO. OF COLORADO
Serial number
72155188
Registration number
773364
Filing date
Oct 15, 1962
PUBLIC SERVICE COMPANY OF COLORADO
42 - Scientific and technological services and research and design relating thereto
Information
Trademark
72155189
Serial number
72155189
Registration number
772024
Filing date
Oct 15, 1962
PUBLIC SERVICE COMPANY OF COLORADO
42 - Scientific and technological services and research and design relating thereto