Helt; Robert W.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Helt; Robert W..The latest application filed is for "ventilation controller".

Company Profile

0.28.18

Helt; Robert W. - Westborough MA US
Helt; Robert W. - Tyler TX US
Helt; Robert W. - Portland ME
Helt; Robert W. - Oklahoma City OK

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Time delay with control voltage sensing Grant 9,601,919 - Helt March 21, 2	2017-03-21
Ventilation Controller App 20150253025 - Helt; Robert W. ; et al.	2015-09-10
Ventilation Controller App 20150093984 - Helt; Robert W. ; et al.	2015-04-02
Ventilation controller Grant 8,961,282 - Helt , et al. February 24, 2	2015-02-24
Ventilation Controller App 20140182833 - Helt; Robert W. ; et al.	2014-07-03
Heater interlock control for air conditioning system Grant 8,746,584 - Helt June 10, 2	2014-06-10
Ventilation controller Grant 8,702,482 - Helt , et al. April 22, 2	2014-04-22
Temperature compensation method for thermostats Grant 8,695,887 - Helt , et al. April 15, 2	2014-04-15
Time Delay With Control Voltage Sensing App 20130107401 - Helt; Robert W.	2013-05-02
Device and method for recording air conditioning system information Grant 8,117,862 - Helt , et al. February 21, 2	2012-02-21
Control system interface with display for air conditioning apparatus Grant 7,975,494 - Boydstun , et al. July 12, 2	2011-07-12
Multiple thermostats for air conditioning system with time setting feature Grant 7,837,128 - Helt , et al. November 23, 2	2010-11-23
System and method for controlling indoor air flow for heating, ventilating and air conditioning equipment Grant 7,640,761 - Garrett , et al. January 5, 2	2010-01-05
Multiple Thermostats For Air Conditioning System With Time Setting Feature App 20090314846 - HELT; Robert W. ; et al.	2009-12-24
Multiple thermostats for air conditioning system with time setting feature Grant 7,600,694 - Helt , et al. October 13, 2	2009-10-13
Control system interface with display for air conditioning apparatus App 20090090115 - Boydstun; Roger L. ; et al.	2009-04-09
Automatic damper control for air conditioning system humidifier Grant 7,434,741 - Helt , et al. October 14, 2	2008-10-14
Heater interlock control for air conditioning system App 20080237217 - Helt; Robert W.	2008-10-02
Device and method for recording air conditioning system information App 20080223944 - Helt; Robert W. ; et al.	2008-09-18
Temperature compensation method for thermostats App 20080217418 - Helt; Robert W. ; et al.	2008-09-11
Heat pump control system and method of operating to provide automatic backup heating modes Grant 7,380,588 - Helt June 3, 2	2008-06-03
Air filtration system control Grant 7,351,274 - Helt , et al. April 1, 2	2008-04-01
Controlling airflow in an air conditioning system for control of system discharge temperature and humidity Grant 7,228,693 - Helt June 12, 2	2007-06-12
System and method for controlling indoor air flow for heating, ventilating and air conditioning equipment App 20070095082 - Garrett; Carl L. ; et al.	2007-05-03
Air filtration system control App 20070039462 - Helt; Robert W. ; et al.	2007-02-22
Heating, ventilating and air conditioning controller Grant D533,091 - Garrett , et al. December 5, 2	2006-12-05
Ventilation controller App 20060117769 - Helt; Robert W. ; et al.	2006-06-08
Automatic damper control for air conditioning system humidifier App 20060086814 - Helt; Robert W. ; et al.	2006-04-27
Multiple thermostats for air conditioning system with time setting feature App 20050161517 - Helt, Robert W. ; et al.	2005-07-28
Controlling airflow in an air conditioning system for control of system discharge temperature and humidity App 20050150238 - Helt, Robert W.	2005-07-14
Heat pump control system and method of operating to provide automatic backup heating modes App 20050150650 - Helt, Robert W.	2005-07-14
Air handler power distribution system Grant 6,647,203 - Helt , et al. November 11, 2	2003-11-11
Gas furnace with variable speed draft inducer App 20010044084 - Hugghins, G. Jeffrey ; et al.	2001-11-22
Gas furnace with variable speed draft inducer Grant 6,257,870 - Hugghins , et al. July 10, 2	2001-07-10
Apparatus for generating a spark Grant 6,247,921 - Helt June 19, 2	2001-06-19
Integrated furnace control Grant 5,271,556 - Helt , et al. December 21, 1	1993-12-21
Refrigeration compressor driven by a DC motor Grant 4,856,286 - Sulfstede , et al. August 15, 1	1989-08-15
Time based cooling below set point temperature Grant 4,850,198 - Helt , et al. July 25, 1	1989-07-25
Cooling of air conditioning control electronics Grant 4,720,981 - Helt , et al. January 26, 1	1988-01-26
Dual mode controller for assigning operating priority of two loads Grant 4,687,948 - Helt August 18, 1	1987-08-18
Outdoor coil unit for heat pump Grant 4,261,418 - Helt , et al. April 14, 1	1981-04-14

uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.

While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.

All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.