DH

David S. Haffner

LM L&P Property Management: 5 patents #82 of 538Top 20%
Overall (All Time): #1,003,981 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9044102 Spring core having border wire with generally rectangular cross-section John E. Hull, Steven M. Montague, Darrell A. Richmond, Thomas W. Wells 2015-06-02
8769748 Spring core having border wire with generally rectangular cross-section John E. Hull, Steven M. Mongatue, Darrell A. Richmond, Thomas W. Wells 2014-07-08
8490232 Spring core having border wire with generally rectangular cross-section John E. Hull, Steven M. Montague, Darrell A. Richmond, Thomas W. Wells 2013-07-23
8332974 Bedding foundation having border wire with generally rectangular cross-section John E. Hull, Steven M. Montague, Darrell A. Richmond, Thomas W. Wells 2012-12-18
8327475 Bedding foundation having nestably stackable spring assembly welded to border wire with generally rectangular cross-section John E. Hull, Steven M. Montague, Darrell A. Richmond, Thomas W. Wells 2012-12-11