Christopher B. Pietruczynik

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Norristown, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Exterior building material having a hollow thin wall profile and an...
- Patent number 8,955,281
- Issue date Feb 17, 2015
- CertainTeed Corporation
- Christopher B. Pietruczynik
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Exterior Building Material Having a Hollow Thin Wall Profile and an...
- Publication number 20100107530
- Publication date May 6, 2010
- Christopher B. Pietruczynik
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Exterior Building Material Having a Hollow Thin Wall Profile and an...
- Publication number 20100032861
- Publication date Feb 11, 2010
- Christopher B. Pietruczynik
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
EXTERIOR BUILDING MATERIAL HAVING A HOLLOW THIN WALL PROFILE AND AN...
- Publication number 20080010924
- Publication date Jan 17, 2008
- Christopher B. Pietruczynik
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL