Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Michael E. Woolford — 20 Patents

ASAnchor Wall Systems: 13 patents #10 of 44Top 25%
TSThe Block System: 3 patents #1 of 4Top 25%
KIKiltie: 2 patents #3 of 4Top 75%
OLOldcastle: 2 patents #2 of 7Top 30%
Lake Elmo, MN: #38 of 301 inventorsTop 15%
Minnesota: #3,552 of 52,454 inventorsTop 7%
Overall (All Time): #214,803 of 4,157,543Top 6%
20 Patents All Time
Michael E. Woolford has been granted 20 US patents while listed as an inventor at Anchor Wall Systems. The first was granted in 1991 and the most recent in June 2008. Michael E. Woolford ranks #214,803 of 4,157,543 US inventors in our database (top 5.2%). Patent records list Michael E. Woolford in Lake Elmo, MN, US.

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDate
7384215 Composite masonry block 2008-06-10
7360970 Composite masonry block Dick J. Sievert 2008-04-22
7048472 Composite masonry block Dick J. Sievert 2006-05-23
6641334 Composite masonry block 2003-11-04
6616382 Composite masonry block Dick J. Sievert 2003-09-09
6312197 Composite masonry block Dick J. Sievert 2001-11-06
6183168 Composite masonry block Dick J. Sievert 2001-02-06
6142713 Composite masonry block Dick J. Sievert 2000-11-07
5884445 Paving block array 1999-03-23
D404147 Paving block 1999-01-12
5827015 Composite masonry block Dick J. Sievert 1998-10-27
5711129 Masonry block 1998-01-27
5709062 Composite masonry block 1998-01-20
5704183 Composite masonry block 1998-01-06
5589124 Method of forming composite masonry blocks Dick J. Sievert 1996-12-31
5490363 Composite masonry block 1996-02-13
5249950 Heated stripper shoe assembly 1993-10-05
5062610 Composite masonry block mold for use in block molding machines Dick J. Sievert 1991-11-05
D321060 Retaining wall block Peter J. Blomquist 1991-10-22
D319885 Retaining wall block Peter J. Blomquist 1991-09-10