Welch; Douglas A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Welch; Douglas A..The latest application filed is for "chamfered attachment for a bladed rotor".
- Welch; Douglas A. - Portland CT
- Welch; Douglas A. - San Jose CA
| Patent | Date |
|---|---|
| Chamfered attachment for a bladed rotor Grant 6,846,159 - Zabawa , et al. January 25, 2 | 2005-01-25 |
| Chamfered attachment for a bladed rotor App 20030194319 - Zabawa, Douglas J. ; et al. | 2003-10-16 |
| Penetration resistant fan casing for a turbine engine Grant 6,059,524 - Costa , et al. May 9, 2 | 2000-05-09 |
| Impact resistant hollow airfoils Grant 6,048,174 - Samit , et al. April 11, 2 | 2000-04-11 |
| Frangible fan blade Grant 5,836,744 - Zipps , et al. November 17, 1 | 1998-11-17 |
| Method and apparatus for reducing stress on the tips of turbine or compressor blades Grant 5,476,363 - Freling , et al. December 19, 1 | 1995-12-19 |
| Feature telephone integration device Grant 4,873,718 - Barnett , et al. October 10, 1 | 1989-10-10 |
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