Patent applications and USPTO patent grants for Chavez; Julio.The latest application filed is for "rechargeable reciprocating pneumatic piston engine".
Patent | Date |
---|---|
Reciprocating piston engine Grant 10,724,372 - Chavez | 2020-07-28 |
Reciprocating piston engine Grant 10,100,678 - Chavez October 16, 2 | 2018-10-16 |
Rechargeable Reciprocating Pneumatic Piston Engine App 20100095662 - Chavez; Julio | 2010-04-22 |
Reciprocating Pneumatic Piston Gravity Engine App 20100058751 - Chavez; Julio | 2010-03-11 |
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