DH

Deborah Holtkamp

HW Homewerks Worldwide: 1 patents #18 of 22Top 85%
📍 Wrentham, MA: #84 of 165 inventorsTop 55%
🗺 Massachusetts: #42,150 of 88,656 inventorsTop 50%
Overall (All Time): #1,770,589 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12036500 Fan assembly with filtering and exhaust Peter D. Berkman, Michael Malaker, Huang Xiaoying, He Liting, Lin TiaoHao +1 more 2024-07-16
D680211 Fan Walter Birdsell, James Varney 2013-04-16