DK

Donald Walter Welsh Kirkwood

PT Praxair Technology: 2 patents #335 of 918Top 40%
📍 Oakville, CA: #387 of 1,175 inventorsTop 35%
Overall (All Time): #1,611,895 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6613949 Oxygen enrichment process for air based gas phase oxidations which use metal oxide redox catalysts Matthew Lincoln Wagner, Kazuo Kiyonaga 2003-09-02
5646305 Oxygen enrichment process for air based gas phase oxidations which use metal oxide redox catalysts Matthew Lincoln Wagner, Kazuo Kiyonaga 1997-07-08
4655047 Process for freezing or chilling George A. Temple, Bosko Milankov 1987-04-07