HH

Harold K. Hilfiker

HC Hilfiker Pipe Co.: 1 patents #1 of 2Top 50%
📍 Eureka, CA: #4 of 8 inventorsTop 50%
🗺 California: #8,284 of 26,763 inventorsTop 35%
Overall (2002): #210,807 of 266,432Top 80%
1
Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6357970 Compressible welded wire wall for retaining earthen formations William B. Hilfiker 2002-03-19