DePenning; Charles Lawrence
Patent Applications and Registrations
Patent applications and USPTO patent grants for DePenning; Charles Lawrence.The latest application filed is for "noise abatement device and method for air-cooled condensing systems".
- DePenning; Charles Lawrence - Marshalltown IA
- DePenning; Charles Lawrence - Nevada IA
| Patent | Date |
|---|---|
| Noise level reduction of sparger assemblies Grant 7,866,441 - Catron , et al. January 11, 2 | 2011-01-11 |
| Noise level reduction of sparger assemblies Grant 7,584,822 - Catron , et al. September 8, 2 | 2009-09-08 |
| Noise abatement device and method for air-cooled condensing systems Grant 7,055,324 - DePenning , et al. June 6, 2 | 2006-06-06 |
| Noise abatement device and method for air-cooled condensing systems App 20040177613 - DePenning, Charles Lawrence ; et al. | 2004-09-16 |
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