Appel; David W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Appel; David W..The latest application filed is for "slotted melt-blown die head".
- Appel; David W. - Wittenberg WI
- Appel; David W. - Wittenburg WI
- Appel; David W. - Neenah WI
| Patent | Date |
|---|---|
| Slotted melt-blown die head Grant 4,720,252 - Appel , et al. January 19, 1 | 1988-01-19 |
| Apparatus for forming nonwoven webs Grant 4,405,297 - Appel , et al. September 20, 1 | 1983-09-20 |
| Method of forming a web of air-laid dry fibers Grant 4,375,448 - Appel , et al. March 1, 1 | 1983-03-01 |
| Method for forming nonwoven webs Grant 4,340,563 - Appel , et al. July 20, 1 | 1982-07-20 |
| Control of oil distribution in heated embossing rolls Grant 4,252,184 - Appel February 24, 1 | 1981-02-24 |
| Distributor for thermoplastic extrusion die Grant 4,043,739 - Appel August 23, 1 | 1977-08-23 |
| Pulp Picking Apparatus With Improved Fiber Forming Duct Grant 3,793,678 - Appel February 26, 1 | 1974-02-26 |
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