Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
WC

William E. Clark

CACarrier: 12 patents #139 of 2,507Top 6%
CTCooper Technologies: 3 patents #99 of 757Top 15%
COContinental Oil: 2 patents #4 of 13Top 35%
Bethel Park, PA: #5 of 258 inventorsTop 2%
Pennsylvania: #2,452 of 74,527 inventorsTop 4%
Overall (All Time): #165,730 of 4,157,543Top 4%
25 Patents All Time

Issued Patents All Time

Showing 1–25 of 25 patents

Patent #TitleCo-InventorsDate
6755035 HVAC system and method for conditioning air Patrick James MCNAMARA 2004-06-29
6576188 Surface and air sterilization using ultraviolet light and ultrasonic waves Edward V. Rose 2003-06-10
6171548 Surface and air sterilization using ultraviolet light and ultrasonic waves Edward V. Rose 2001-01-09
6090346 Sterilization using ultraviolet light and ultrasonic waves Edward V. Rose 2000-07-18
6068043 Method and apparatus for nucleated forming of semi-solid metallic alloys from molten metals 2000-05-30
5544697 Differential temperature control 1996-08-13
D336070 Electrical plug assembly 1993-06-01
5167527 Electrical plug assembly 1992-12-01
5135404 Insulating liner for an electrical plug assembly 1992-08-04
4938280 Liquid-cooled, flat plate heat exchanger 1990-07-03
4890666 Method for controlling an air distribution system using .DELTA.T 1990-01-02
4659010 Thermostatic transducer 1987-04-21
4630670 Variable volume multizone system Donald C. Wellman 1986-12-23
4549601 Variable volume multizone system Donald C. Wellman 1985-10-29
4533080 Air terminal--air handler interface James Carucci 1985-08-06
4531573 Variable volume multizone unit Donald C. Wellman 1985-07-30
4527734 Subzone diverter control Roy E. Swain 1985-07-09
4527735 Thermostatic transducer 1985-07-09
4521167 Low frictional loss rotary vane gas compressor having superior lubrication characteristics Robert J. Cavalleri 1985-06-04
4495986 Method of operating a variable volume multizone air conditioning unit Donald C. Wellman 1985-01-29
4480783 VAV Terminal local control loop 1984-11-06
4426999 Solar energy collector Joseph H. Evans, Jeffrey J. Hatman 1984-01-24
4201754 Method for the conversion of calcium sulfoxy compounds into calcium carbonate compounds in sulfur oxide treatment processes 1980-05-06
4201759 Method for regenerating calcium sulfoxy compounds produced in the combustion of carbonaceous fuels in fluidized beds 1980-05-06
4186876 System powered damper blade assembly for use in an air conditioning system Carl C. Herb, Reginald S. Greene 1980-02-05