DH

David P. Holzapfel

SA Siemens Aktiengesellschaft: 1 patents #228 of 1,148Top 20%
📍 Charlotte, NC: #192 of 588 inventorsTop 35%
🗺 North Carolina: #2,039 of 5,993 inventorsTop 35%
Overall (2020): #501,085 of 565,922Top 90%
1
Patents 2020

Issued Patents 2020

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10533750 Cross ignition flame duct Daniel W. Garan, Richard L. Thackway, Stephen A. Ramier, Charalambos Polyzopoulos, Kevin J. Spence +1 more 2020-01-14