Inventor
Stephen D. Dunmead
Inventor
Midland, MI, US
Overview
Patents· 25 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C04Bprimary
C04BLime, magnesia21%
C01BNon-metallic elements19%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds18%
C22CAlloys11%
B82YSpecific uses or applications of nanostructures10%
Y10TTechnical subjects covered by former us classification7%
B22FWorking metallic powder4%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry1%
C01FCompounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare-earth metals1%
PatentTitleYear
6,837,915'High density, metal-based materials having low coefficients of friction and wear rates'20056,689,191'Rapid conversion of metal-containing compounds to form metals or metal alloys'20046,495,115'Method to produce a transition metal carbide from a partially reduced transition metal compound'20026,007,598'Metallic-carbide-group VIII metal powder and preparation methods thereof'19995,942,204'Method to produce a transition metal carbide from a partially reduced transition metal compound'19995,756,410'Method for making submicrometer transition metal carbonitrides'19985,746,803'Metallic-carbide group VIII metal powder and preparation methods thereof'19985,710,382'Aluminum nitride, aluminum nitride containing solid solutions and aluminum nitride composites prepared by combustion synthesis and sintered bodies prepared therefrom'19985,708,956'Single step synthesis and densification of ceramic-ceramic and ceramic-metal composite materials'19985,681,783'Sintered WC-containing materials'19975,649,278'Aluminum nitride, aluminum nitride containing solid solutions and aluminum nitride composites prepared by combustion synthesis'19975,643,843'Silicon nitride/silicon carbide composite densified materials prepared using composite powders'19975,612,264'Methods for making WC-containing bodies'19975,580,666'Cemented ceramic article made from ultrafine solid solution powders, method of making same, and the material thereof'19965,567,662'Method of making metallic carbide powders'19965,563,107'Densified micrograin refractory metal or solid solution solution (mixed metal) carbide ceramics'19965,538,675'Method for producing silicon nitride/silicon carbide composite'19965,525,556'Silicon nitride/silicon carbide composite powders'19965,521,016'Light weight boron carbide/aluminum cermets'19965,383,421'Method for forming beta-silicon carbide whiskers, singly or in a matrix, using an organotitanium coordination compound catalyst'19955,380,688'Method for making submicrometer carbides, submicrometer solid solution carbides, and the material resulting therefrom'19955,372,797'Low temperature method for synthesizing micrograin tungsten carbide'19944,988,645'Cermet materials prepared by combustion synthesis and metal infiltration'19914,946,643'Dense, finely, grained composite materials'19904,909,842'Grained composite materials prepared by combustion synthesis under mechanical pressure'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–1991Patents assigned to US ENERGY (3)· patent assignee history
1990–1991Based in Davis, CA, US· patent location history
1994–1998Patents assigned to DOW CHEMICAL CO (17)· patent assignee history
1994–2002Based in Midland, MI, US· patent location history
1999–2004Patents assigned to OMG AMERICAS INC (4)· patent assignee history
2004Patents assigned to UNIV COLORADO (1)· patent assignee history
2004Based in Raleigh, NC, US· patent location history
2005Patents assigned to SCM METAL PRODUCTS INC (1)· patent assignee history
2005Based in Solon, OH, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DOW CHEMICAL CO | 17 | 1994–1998 |
| OMG AMERICAS INC | 4 | 1999–2004 |
| US ENERGY | 3 | 1990–1991 |
| SCM METAL PRODUCTS INC | 1 | 2005 |
| UNIV COLORADO | 1 | 2004 |
Locations
| Location | Patents | Span |
|---|---|---|
| Midland, MI, US | 20 | 1994–2002 |
| Davis, California, US | 3 | 1990–1991 |
| Solon, OH, US | 1 | 2005 |
| Raleigh, NC, US | 1 | 2004 |