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USPTO Patent Rankings Data through Dec 31, 2025
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Eric J. Chalmers — 8 Patents

HYHypertherm: 3 patents #69 of 199Top 35%
POPossis: 3 patents #1 of 4Top 25%
Minneapolis, MN: #854 of 6,114 inventorsTop 15%
Minnesota: #9,348 of 52,454 inventorsTop 20%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Eric J. Chalmers has been granted 8 US patents while listed as an inventor at Hypertherm. The first was granted in 1991 and the most recent in June 2018. Eric J. Chalmers ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Eric J. Chalmers in Minneapolis, MN, US.

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9989054 Compact ultrahigh pressure dynamic seal assembly with pressure activating backup ring David Osterhouse, Jon W. Lindsay, Arion Vandergon, Cedar Vandergon 2018-06-05
9687884 Slat cleaning tool David Fox, Brent A. Erickson 2017-06-27
9346147 Pedestal style waterjet orifice assembly Jon W. Lindsay, Cedar Vandergon 2016-05-24
9144882 Identifying liquid jet cutting system components Jon W. Lindsay, Cedar Vandergon, Michael Hoffa, E. Michael Shipulski 2015-09-29
5273405 Fluid cushioning apparatus for hydraulic intensifier assembly David P. LaFavor 1993-12-28
5092744 Intensifier Arie Boers 1992-03-03 $1,507,000
5052624 Ultra high pressure water cleaning tool Arie Boers 1991-10-01 $1,414,000
5018670 Cutting head for water jet cutting machine 1991-05-28 $1,021,000