James E. Hammer — 48 Patents at Westblock Systems

James E. Hammer has been granted 48 US patents while listed as an inventor at Westblock Systems. The first was granted in 1994 and the most recent in November 2025. James E. Hammer ranks #57,596 of 4,157,543 US inventors in our database (top 1.4%). Patent records list James E. Hammer in Lake Forest Park, WA, US.

Issued Patents All Time

Showing 1–25 of 48 patents

Patent #	Title	Co-Inventors	Date
D1101975	Wall block	Eric Hammer	2025-11-11
D1101974	Wall block	Eric Hammer	2025-11-11
D1091872	Wall block	Eric Hammer	2025-09-02
D1088285	Wall block	Eric Hammer	2025-08-12
D1085468	Wall block	Eric Hammer, Stephen Burgoyne	2025-07-22
D1069176	Wall block	Eric Hammer	2025-04-01
D1057206	Wall block	Eric Hammer	2025-01-07
D1038446	Wall block	Eric Hammer	2024-08-06
D1038445	Wall block	Eric Hammer	2024-08-06
9902600	Retaining wall system	Max Griffin	2018-02-27
9562338	Retaining wall system	Max Griffin	2017-02-07
9428878	Retaining wall system	—	2016-08-30
8667759	Wall block system	—	2014-03-11
D679300	Concrete block mold	—	2013-04-02
D678553	Wall block	—	2013-03-19
D677803	Wall block	—	2013-03-12
D676070	Concrete block mold	—	2013-02-12
D674121	Wall block	—	2013-01-08
D668792	Wall block	—	2012-10-09
D665928	Wall block	—	2012-08-21
D663329	Concrete block mold	—	2012-07-10
D652531	Wall block	—	2012-01-17
D652155	Wall block	—	2012-01-10
D652154	Wall block	—	2012-01-10
D652153	Wall block	—	2012-01-10

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James E. Hammer — 48 Patents

Issued Patents All Time

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