loadpatents
name:-0.0047018527984619
name:-0.0080130100250244
name:-0.00061297416687012
Carpenter; David J. Patent Filings

Carpenter; David J.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Carpenter; David J..The latest application filed is for "displacement ventilation systems having integrated heat exchangers with heat conductive air filtration substrates".

Company Profile
0.8.6
  • Carpenter; David J. - Santa Rosa CA
  • Carpenter; David J - Chicago IL
  • Carpenter, David J. - Chicago IL
  • Carpenter; David J. - Boulder CO
*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.
Patent Activity
PatentDate
Displacement Ventilation Systems Having Integrated Heat Exchangers With Heat Conductive Air Filtration Substrates
App 20220186973 - Carpenter; David J.
2022-06-16
Displacement ventilation systems for enclosed spaces
Grant 11,268,710 - Carpenter March 8, 2
2022-03-08
Displacement Ventilation Systems For Enclosed Spaces
App 20180156481 - Carpenter; David J.
2018-06-07
Displacement ventilation systems for enclosed spaces
Grant 9,851,116 - Carpenter December 26, 2
2017-12-26
Displacement Ventilation Systems For Enclosed Spaces
App 20110159796 - Carpenter; David J.
2011-06-30
Electronic tuning system and methods of using same
Grant 7,268,286 - Carpenter September 11, 2
2007-09-11
Electronic tuning system and methods of using same
App 20040025672 - Carpenter, David J.
2004-02-12
Note detection system and methods of using same
Grant 6,627,806 - Carpenter September 30, 2
2003-09-30
Electronic tuning system and methods of using same
Grant 6,613,971 - Carpenter September 2, 2
2003-09-02
Liquid prism device
Grant 4,953,956 - Carpenter September 4, 1
1990-09-04

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