Eric Johnson — 2 Patents at Sandvik Ab

Eric Johnson has been granted 2 US patents while listed as an inventor at Sandvik Ab. The first was granted in 2001 and the most recent in November 2023. Eric Johnson ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Eric Johnson in Newcastle, TX, AU.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
11828117	High-pressure drilling assembly	Phillip Bailey, Daniel Nobre, Nalin Weerasinghe	2023-11-28	$56,677,000
6309159	Self drilling roof bolt	Steven Weaver, Michael McLean	2001-10-30

Eric Johnson — 2 Patents

Issued Patents All Time

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