DH

Donald O. Heumann

📍 Metairie, LA: #156 of 530 inventorsTop 30%
🗺 Louisiana: #3,194 of 10,876 inventorsTop 30%
Overall (All Time): #2,180,017 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6906108 Extracts of vetiver oil as repellent and toxicant to ants, ticks, and cockroaches Gregg Henderson, Roger A. Laine, Lara Maistrello, Betty Zhu, Feng Chen 2005-06-14
6890960 Vetiver oil extracts as termite repellent and toxicant Gregg Henderson, Roger A. Laine, Feng Chen, Betty Zhu 2005-05-10