Issued Patents All Time
Showing 1–25 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11524334 | Method and apparatus for avoiding erosion in a high pressure die casting shot sleeve for use with low iron aluminum silicon alloys | Raymond J. Donahue, Steven C. Knickel, Kevin R. Anderson, Kevin R. Morasch, Mark R. Witzel | 2022-12-13 |
| 11318530 | Slides and expendable cores for high pressure die cast closed deck engine block | Kevin R. Anderson, Raymond J. Donahue, Alexander K. Monroe, Clayton T. Rasmussen | 2022-05-03 |
| 11090714 | Method and apparatus for avoiding erosion in a high pressure die casting shot sleeve for use with low iron aluminum silicon alloys | Raymond J. Donahue, Steven C. Knickel, Kevin R. Anderson, Kevin R. Morasch, Mark R. Witzel | 2021-08-17 |
| 10596622 | Slides and expendable cores for high pressure die cast closed deck engine block | Kevin R. Anderson, Raymond J. Donahue, Alexander K. Monroe, Clayton T. Rasmussen | 2020-03-24 |
| 10486229 | Method and apparatus for avoiding erosion in a high pressure die casting shot sleeve for use with low iron aluminum silicon alloys | Raymond J. Donahue, Steven C. Knickel, Kevin R. Anderson, Kevin R. Morasch, Mark R. Witzel | 2019-11-26 |
| 10370742 | Hypereutectic aluminum-silicon cast alloys having unique microstructure | Raymond J. Donahue, Kevin R. Anderson, Alexander K. Monroe | 2019-08-06 |
| 10364484 | Method and alloys for low pressure permanent mold without a coating | Raymond J. Donahue, Alexander K. Monroe, Kevin R. Anderson | 2019-07-30 |
| 10189079 | Slides and expendable cores for high pressure die cast closed deck engine block | Kevin R. Anderson, Raymond J. Donahue, Alexander K. Monroe, Clayton T. Rasmussen | 2019-01-29 |
| 9757795 | Method and apparatus for avoiding erosion in a high pressure die casting hot sleeve for use with low iron aluminum silicon alloys | Raymond J. Donahue, Steven C. Knickel, Kevin R. Anderson, Kevin R. Morasch, Mark R. Witzel | 2017-09-12 |
| 9731348 | Method and apparatus for avoiding erosion in a high pressure die casting shot sleeve for use with low iron aluminum silicon alloys | Raymond J. Donahue, Steven C. Knickel, Kevin R. Anderson, Kevin R. Morasch, Mark R. Witzel | 2017-08-15 |
| 9650699 | Nickel containing hypereutectic aluminum-silicon sand cast alloys | Raymond J. Donahue, Kevin R. Anderson, Alexander K. Monroe | 2017-05-16 |
| 9114456 | Method and apparatus for avoiding erosion in a high pressure die casting shot sleeve for use with low iron aluminum silicon alloys | Raymond J. Donahue, Steven C. Knickel, Kevin R. Anderson, Kevin R. Morasch, Mark R. Witzel | 2015-08-25 |
| 9114455 | Method and apparatus for avoiding erosion in a high pressure die casting shot sleeve for use with low iron aluminum silicon alloys | Raymond J. Donahue, Steven C. Knickel, Kevin R. Anderson, Kevin R. Morasch | 2015-08-25 |
| 9109271 | Nickel containing hypereutectic aluminum-silicon sand cast alloy | Raymond J. Donahue, Kevin R. Anderson | 2015-08-18 |
| 8074355 | Method for manufacturing a connecting rod for an engine | Raymond J. Donahue | 2011-12-13 |
| 7666353 | Aluminum-silicon alloy having reduced microporosity | Raymond J. Donahue, Kevin R. Anderson | 2010-02-23 |
| 7347905 | Aluminum-silicon alloy having reduced microporosity and method for casting the same | Raymond J. Donahue, Kevin R. Anderson | 2008-03-25 |
| 7100669 | Aluminum-silicon casting alloy having refined primary silicon due to pressure | Raymond J. Donahue | 2006-09-05 |
| 6923935 | Hypoeutectic aluminum-silicon alloy having reduced microporosity | Raymond J. Donahue, Kevin R. Anderson | 2005-08-02 |
| 6883580 | Apparatus and improved method for lost foam casting of metal articles using external pressure | Raymond J. Donahue | 2005-04-26 |
| 6763876 | Method and apparatus for casting of metal articles using external pressure | Raymond J. Donahue, Parker A. Stroom | 2004-07-20 |
| 6478073 | Composite core for casting metallic objects | David E. Grebe, Mark P. Potratz, William G. Hesterberg | 2002-11-12 |
| 6427759 | Investment cast stainless steel marine propeller | Richard S. Bauer, Barry L. Riutta, Raymond J. Donahue, Kevin R. Anderson | 2002-08-06 |
| 6024157 | Method of casting hypereutectic aluminum-silicon alloys using an evaporable foam pattern and pressure | Raymond J. Donahue | 2000-02-15 |
| 5518060 | Method of producing polymeric patterns for use in evaporable foam casting | Thomas E. Bilderback | 1996-05-21 |