IP Library Granted Patent US 1,101,975
Granted Patent S1
US 1,101,975 · App. 29/974,157 · Granted Nov 11, 2025

Wall block

Inventors: Eric Hammer (Antioch, TN); James E. Hammer (Lake Forest Park, WA)
Assignee: Westblock Systems, Inc.
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Quick Facts
Patent No.
US 1,101,975
App. No.
29/974,157
Granted
Nov 11, 2025
Kind
S1
Claims (1)

The ornamental design for a wall block, as shown and described.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 22, 2024
From: HAMMER, JAMES E.; HAMMER, ERIC
To: WESTBLOCK SYSTEMS, INC.
Reel/Frame 069376/0332 →
Continuity (1)
Division 29859092 · Nov 7, 2022
References Cited (80)
US 4094380A · Kobayashi et al. · 1978 [cited by applicant]
US 4596103A · Couwenbergs · 1986 [cited by applicant]
US D295790S · Forsberg · 1988 [cited by applicant]
US D300253S · Forsberg · 1989 [cited by applicant]
US D300863S · McNeely · 1989 [cited by applicant]
US 4896999A · Ruckstuhl · 1990 [cited by applicant]
US D313280S · Rodenburgh · 1990 [cited by examiner]
US D317209S · Forsberg · 1991 [cited by applicant]
US D340772S · Harrison · 1993 [cited by examiner]
US D340997S · Harrison · 1993 [cited by examiner]
US D341215S · Blomquist et al. · 1993 [cited by applicant]
US 5337527A · Wagenaar · 1994 [cited by applicant]
US 5350256A · Hammer · 1994 [cited by applicant]
US D353680S · Jansson · 1994 [cited by examiner]
US D363787S · Powell · 1995 [cited by applicant]
US 5505034A · Dueck · 1996 [cited by applicant]
US D397451S · Stevenson · 1998 [cited by examiner]
US 5788423A · Perkins · 1998 [cited by applicant]
US D404146S · Perkins · 1999 [cited by examiner]
US D405543S · Shillingburg · 1999 [cited by applicant]
US 5865005A · Cataldo · 1999 [cited by applicant]
US D408930S · Behunin · 1999 [cited by applicant]
US D456527S · Azar · 2002 [cited by applicant]
US D467009S · Agee · 2002 [cited by applicant]
US D468450S · Hammer · 2003 [cited by applicant]
US 6978580B1 · Clark et al. · 2005 [cited by applicant]
US D514232S · Jansson · 2006 [cited by examiner]
US D528223S · Jansson · 2006 [cited by examiner]
US D530832S · Rainey · 2006 [cited by applicant]
US D532119S · Hammer · 2006 [cited by applicant]
US D539436S · Magliocco et al. · 2007 [cited by applicant]
US D539930S · Magliocco et al. · 2007 [cited by applicant]
US D556919S · Price · 2007 [cited by applicant]
US 7503729B2 · Hammer et al. · 2009 [cited by applicant]
US D604865S · Rainey · 2009 [cited by applicant]
US D608463S · Rainey · 2010 [cited by applicant]
US D610711S · LaCroix et al. · 2010 [cited by applicant]
US D610713S · Hammer · 2010 [cited by applicant]
US D611106S · van Beek · 2010 [cited by applicant]
US D611165S · Hammer · 2010 [cited by applicant]
US 7794180B2 · Blundell · 2010 [cited by applicant]
US D625027S · Bott · 2010 [cited by applicant]
US D636897S · Bott · 2011 [cited by applicant]
US D645575S · Bone · 2011 [cited by applicant]
US D650918S · Hammer · 2011 [cited by applicant]
US D655425S · Wauhop · 2012 [cited by applicant]
US D667138S · Rainey · 2012 [cited by applicant]
US D668792S · Hammer · 2012 [cited by applicant]
US D687166S · Dyson · 2013 [cited by applicant]
US D689204S · MacDonald · 2013 [cited by applicant]
US D708765S · MacDonald · 2014 [cited by applicant]
US D781455S · Risi · 2017 [cited by applicant]
US 9902600B2 · Hammer et al. · 2018 [cited by applicant]
US D812781S · MacDonald et al. · 2018 [cited by applicant]
US D844857S · Pegg · 2019 [cited by applicant]
US D846760S · Lundell et al. · 2019 [cited by applicant]
US D866004S · Johnson · 2019 [cited by examiner]
US D867620S · Pegg · 2019 [cited by applicant]
US D893053S · Bott · 2020 [cited by applicant]
US D893760S · Bott · 2020 [cited by examiner]
US D895153S · McIntosh · 2020 [cited by applicant]
US D900342S · Rainey · 2020 [cited by examiner]
US D984677S · Gran et al. · 2023 [cited by applicant]
US D992763S · Hammer · 2023 [cited by applicant]
US D1012321S · Koberg et al. · 2024 [cited by applicant]
US D1017838S · French · 2024 [cited by applicant]
US 12195939B2 · Stell · 2025 [cited by examiner]
US 12264447B2 · McIntosh · 2025 [cited by examiner]
US 12312760B2 · Lundell · 2025 [cited by examiner]
US 20040161307A1 · Hammer · 2004 [cited by applicant]
US 20050241257A1 · Price · 2005 [cited by applicant]
US 20090188196A1 · MacDonald · 2009 [cited by applicant]
US 20090208298A1 · Ness et al. · 2009 [cited by applicant]
US 20120233952A1 · Hammer · 2012 [cited by applicant]
US 20130049259A1 · Hammer · 2013 [cited by applicant]
US 20150063924A1 · Brookhart et al. · 2015 [cited by applicant]
US 20160369472A1 · Ianello et al. · 2016 [cited by applicant]
US 20240140003A1 · Karau · 2024 [cited by examiner]
Half End, date first available 2005 [online], Available from the internet URL: https://www.sydneyconcreteblockcompany.com.au/300mm-series-retaining-wall-blocks (Year: 2005). [cited by examiner]
Concrete Open Ended Standard Block, available in homedepot.com, customer question oldest date Oct. 12, 2015 [online], [site visited Dec. 27, 2023], Available from the internet URL: https://www.homedepot.com/p/8-in-x-16-… [cited by examiner]