DS

David H. Sturgis

PC Precision Castparts: 7 patents #1 of 17Top 6%
PS Pcc Structurals: 6 patents #2 of 24Top 9%
BI Buntrock Industries: 1 patents #7 of 7Top 100%
📍 Gladstone, OR: #4 of 53 inventorsTop 8%
🗺 Oregon: #2,880 of 28,073 inventorsTop 15%
Overall (All Time): #323,417 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
8980778 Mold system for casting of reactive alloys Thomas M. Branscomb 2015-03-17
6920913 Method for processing casting materials to increase slurry lifetime Mehrdad Yasrebi, Karl Milton Taft, III, Michael Gerald Sorbel, Mark E. Springgate, Douglas Gene Nikolas 2005-07-26
6619368 Method for imaging inclusions in investment castings Mark E. Springgate, James Raphord Barrett, Douglas Gene Nikolas, Mehrdad Yasrebi 2003-09-16
6390179 Method for processing materials to increase slurry lifetime Mehrdad Yasrebi, Karl Milton Taft, III, Michael Gerald Sorbel, Mark E. Springgate, Douglas Gene Nikolas 2002-05-21
6326429 Polymeric organic carbonate materials useful as fillers for investment casting waxes Mehrdad Yasrebi, Karl Milton Taft, III, Michael Gerald Sorbel 2001-12-04
6102099 Method for imaging inclusions in investment castings James Raphord Barrett, Mark E. Springgate, Mehrdad Yasrebi, Douglas Gene Nikolas 2000-08-15
6024163 Investment casting brittle, reactive materials Mark E. Springgate, Douglas Gene Nikolas, Mehrdad Yasrebi 2000-02-15
5927379 Infiltration method for producing shells useful for investment casting Mehrdad Yasrebi, William W. Kemp, Mark E. Springgate, Douglas Gene Nikolas 1999-07-27
5643844 Method for stabilizing ceramic suspensions Mehrdad Yasrebi, Mark E. Springgate, Douglas Gene Nikolas, William W. Kemp, Renee Van Ginhoven 1997-07-01
5624604 Method for stabilizing ceramic suspensions Mehrdad Yasrebi, William W. Kemp, Ilhan A. Aksay, Hamazo Nakagawa 1997-04-29
5464797 Yttria-zirconia slurries and mold facecoats for casting reactive metals Mehrdad Yasrebi, William W. Kemp, Douglas Gene Nikolas, Gary L. Wright, Thomas J. Kelly, III +2 more 1995-11-07
5407001 Yttria-zirconia slurries and mold facecoats for casting reactive metals Mehrdad Yasrebi, William W. Kemp, Douglas Gene Nikolas, Gary L. Wright, Thomas J. Kelly, III +2 more 1995-04-18
4996175 Refractory composition and method for metal casting 1991-02-26
4815516 Method for recovering casting refractory compositions from investment casting shell molds William W. Kemp 1989-03-28
4799530 Method for recovering casting refractory compositions from investment casting slurries William W. Kemp 1989-01-24