E01C 5/04

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
2022/0064,871 INTERLOCKING PAVING BRICK ASSEMBLYApr 29, 21Mar 03, 22Not available
2019/0309,484 TWISTED BLOCKJun 24, 19Oct 10, 19Keystone Retaining Wall Systems LLC
2017/0051,458 TWISTED BLOCKOct 03, 16Feb 23, 17KEYSTONE RETAINING WALL SYSTEMS LLC
2015/0259,860 METHODS FOR INSTALLING A BOUNDED PAVING SYSTEMApr 20, 15Sep 17, 15DEUTSCHE BANK AG NEW YORK BRANCH
2015/0117,949 PAVING SYSTEM WITH VARIABLE SPACING BETWEEN THE PAVERSMay 02, 12Apr 30, 15PROSAIC DESIGN PRODUCTS LTD.
2011/0243,660 Molded Brick for Laying Ground CoveringsSep 12, 09Oct 06, 11SF-Kooperation GmbH Beton-Konzepte