DH

Douglas A. Holmberg

📍 Valrico, FL: #14 of 151 inventorsTop 10%
🗺 Florida: #6,875 of 67,251 inventorsTop 15%
Overall (All Time): #660,186 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
7228970 Method and system for storing and dispensing regime of therapeutic dosages 2007-06-12
6339902 Propagation tray 2002-01-22
6241216 Tree line fencing system 2001-06-05
5484335 Ventilated enclosure 1996-01-16
5127189 Propagation tray 1992-07-07
5000080 Ventilated greenhouse 1991-03-19
4945821 Ventilated greenhouse 1990-08-07
4658542 Portable growing system 1987-04-21