Ricardo Lira

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Woodbury, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Moving filter device having filter elements with flow passages and...
- Patent number 6,277,176
- Issue date Aug 21, 2001
- 3M Innovative Properties Company
- Yuan-Ming Tang
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Diffusional gas transfer system and method of using same
- Patent number 6,248,153
- Issue date Jun 19, 2001
- 3M Innovative Properties Company
- David Lloyd Braun
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Moving filter device having filter elements with flow passages and...
- Patent number 6,102,988
- Issue date Aug 15, 2000
- 3M Innovative Properties Company
- Yuan-Ming Tang
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Rotating filtration cartridge and blower for HVAC applications
- Patent number 6,099,608
- Issue date Aug 8, 2000
- 3M Innovative Properties Company
- Michael Harms
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Moving sorbent filter device
- Patent number 6,099,609
- Issue date Aug 8, 2000
- 3M Innovative Properties Company
- Ricardo Lira
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Diffusional gas transfer system and method using same
- Patent number 5,976,220
- Issue date Nov 2, 1999
- 3M Innovative Properties Company
- David L. Braun
- F24 - HEATING RANGES VENTILATING