Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5617823 | Spark-ignited reciprocating piston engine having a subdivided combustion chamber | Charles L. Gray, Jr., Karl H. Hellmann, Gary W. Rogers | 1997-04-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5617823 | Spark-ignited reciprocating piston engine having a subdivided combustion chamber | Charles L. Gray, Jr., Karl H. Hellmann, Gary W. Rogers | 1997-04-08 |