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Hartman Patents

Utility Distribution System for Furniture
Patent No. 5,403,232
Patent Date: April 4, 1995
 
Variable Air Volume Terminal Unit with Exterior Insulation
Patent No. 5,486,140
Patent Date: January 23, 1996
 
Desk Mounted Personal Environment System
Patent No. 5,499,504
Patent Date: March 19, 1996
 
Method and Apparatus for Calibration of Comfort Control IR Sensor
Patent No. 5,531,377
Patent Date: July 2, 1996
 
Self-Balancing Variable Air Volume Heating and Cooling System
Patent No. 5,535,814
Patent Date: July 16, 1996
 
Self-Balancing Variable Air Volume Heating and Cooling System (Divisional)
Patent No. 5,605,280
Patent Date: February 15, 1997
 
Individual Workspace Environmental Control
Patent No. 5,725,148
Patent Date: March 10, 1998
 
Variable Flow Chilled Fluid Cooling System
Patent No. 5,946,926
Patent Date: September 7, 1999
 
Terminal Unit with Active Diffuser
Patent No. 6,079,626
Patent Date: June 27, 2000
 
System for Sequencing Chillers in a LOOP Cooling Plant and Other Systems that Employ All Variable-Speed Units
Patent No. 6,185,946 B1
Patent Date: February 13, 2001
 
Method of Control of Cooling System Condenser Fans and Cooling Tower Fans and Pumps
Patent No. 6,257,007 B1
Patent Date: July 10, 2001
 
High-Efficiency Pumping and Distribution System Incorporating a Self-Balancing, Modulating Control Valve
Patent No. 6,352,106 B1
Patent Date: March 5, 2002
 
Method for Precise Electric Actuator Control with Reduced Repositioning
Patent No. 6,607,140 B1
Patent Date: August 19, 2003
 
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755 County Road 247, Georgetown Texas 78633-4331
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