David Sandelman — 18 Patents at Heat-Timer

David Sandelman has been granted 18 US patents while listed as an inventor at Heat-Timer. The first was granted in 1980 and the most recent in September 2025. David Sandelman ranks #245,716 of 4,157,543 US inventors in our database (top 5.9%). Patent records list David Sandelman in Perkinsville, VT, US.

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #	Title	Co-Inventors	Date
12402640	Vapor pressure control system for drying and curing products	—	2025-09-02
11369119	Vapor pressure control system for drying and curing products	—	2022-06-28
10674752	Vapor pressure control system	—	2020-06-09
6717513	Electronic message delivery system utilizable in the monitoring of remote equipment and method of same	Daniel Shprecher, Joseph Rey	2004-04-06
6535123	Electronic message delivery system	Daniel Shprecher	2003-03-18
6462654	Electronic message delivery system utilizable in the monitoring of remote equipment and method of same	Daniel Shprecher	2002-10-08
6437691	Electronic message delivery system utilizable in the monitoring of remote equipment and method of same	Daniel Shprecher, Joseph Rey	2002-08-20
6223543	Effective temperature controller and method of effective temperature control	—	2001-05-01
6211782	Electronic message delivery system utilizable in the monitoring of remote equipment and method of same	Daniel Shprecher	2001-04-03
6160477	Electronic message delivery system utilizable in the monitoring of remote equipment and method of same	Daniel Shprecher	2000-12-12
6152376	Valve modulation method and system utilizing same	Daniel Shprecher	2000-11-28
6147601	Electronic message delivery system utilizable in the monitoring of remote equipment and method of same	Daniel Shprecher	2000-11-14
6026651	Remote controlled defrost sequencer	—	2000-02-22
5887786	Passive injection system used to establish a secondary system temperature from a primary system at a different temperature	—	1999-03-30
5643482	Snow melt control system	Daniel Shprecher	1997-07-01
5042431	Multiple boiler control system and method of operation	Daniel Shprecher, Jana Marakowitz	1991-08-27
4755730	Variable resistance output motor controller	Douglas J. Lionetti, Daniel Shprecher	1988-07-05
4191328	Integral thermostat-digital clock unit	Roger H. Isaacs, Daniel Shprecher	1980-03-04

David Sandelman — 18 Patents

Issued Patents All Time

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