Issued Patents All Time
Showing 1–25 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8992067 | Device and method for the preparation of recyclable thermoplastic plastic material | Helmuth Schulz, Manfred Hackl | 2015-03-31 |
| 7585102 | Device for charging a screw lodged in a housing and method for operating a device of this type | Helmuth Schulz, Georg Wendelin | 2009-09-08 |
| 7530463 | Backwashable filtering device | Helmuth Schulz, Georg Wendelin | 2009-05-12 |
| 7404665 | Device for charging a screw lodged in a housing and method for operating a device of this type | Helmuth Schulz, Georg Wendelin | 2008-07-29 |
| 7309224 | Device for preparation of plastic materials for recycling purposes | Helmuth Schulz, Georg Wendelin | 2007-12-18 |
| 7291001 | Device for preparing plastics material | Helmuth Schulz, Georg Wendelin, Klaus Feichtinger | 2007-11-06 |
| 7275703 | Method for processing synthetic materials for the purpose of recycling | Helmuth Schulz, Georg Wendelin | 2007-10-02 |
| 7275857 | Apparatus for treating plastics material | Helmuth Schulz, Georg Wendelin | 2007-10-02 |
| 7267234 | Backflushable filter device for molten material and distribution unit for a filter device of this type | Helmuth Schulz, Georg Wendelin, Wolfgang Dreu | 2007-09-11 |
| 7137802 | Apparatus for processing thermoplastic synthetic plastic material | Helmuth Schulz, Georg Wendelin | 2006-11-21 |
| 7108500 | Process and apparatus for recycling of PET-material | Helmuth Schulz, Georg Wendelin | 2006-09-19 |
| 6994795 | Device and method for the filtration of viscous material | Helmuth Schulz, Georg Wendelin | 2006-02-07 |
| 6883953 | Apparatus for pre-treatment and subsequent plastification or agglomeration of synthetic plastic materials | Helmuth Schulz, Georg Wendelin | 2005-04-26 |
| 6854674 | Device for comminuting plastic waste material | Helmuth Schulz, Georg Wendelin | 2005-02-15 |
| 6784214 | Method and device for recycling pet materials | Helmuth Schulz, Georg Wendelin | 2004-08-31 |
| 6719454 | Device and method for preparing plastic material, in particular, thermoplastic material | Helmuth Schulz, Georg Wendelin | 2004-04-13 |
| 6619575 | Apparatus for continuously recycling synthetic material, preferably polymers | Helmuth Schulz, Georg Wendelin | 2003-09-16 |
| 6607299 | Apparatus for removing debris from thermoplastic materials | Georg Wendelin, Helmuth Schulz | 2003-08-19 |
| 6537454 | Device for influencing the flow-through of plastic material which is heated such that it can flow through a housing | Helmuth Schulz, Georg Wendelin | 2003-03-25 |
| 6406174 | Process and device for monitoring the degree of wear of a compression worm conveying plasticized material | Helmuth Schulz, Georg Wendelin | 2002-06-18 |
| 6378705 | Apparatus for filtering plasticized thermoplastics | Helmuth Schulz, Georg Wendelin | 2002-04-30 |
| 6227380 | Device for filtering fluids containing impurities | Helmuth Schulz, Georg Wendelin | 2001-05-08 |
| 5988865 | Device for preparing thermoplastic material | Helmuth Schulz, Georg Wendelin | 1999-11-23 |
| 5882558 | Process and apparatus for recycling of synthetic plastics material containing gas | Helmuth Schulz, Georg Wendelin | 1999-03-16 |
| 5783225 | Apparatus for processing thermoplastic synthetic plastics material | Helmuth Schulz, Georg Wendelin | 1998-07-21 |