David Johnston — 2 Patents at Plant Sciences

David Johnston has been granted 2 US patents while listed as an inventor at Plant Sciences. The first was granted in 2015 and the most recent in March 2021. David Johnston ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list David Johnston in Bridgwater, GB.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
10959384	Plant substrate growing medium	Steven D. Nelson, Michael D. Nelson, Daniel S. Nelson, Scott C. Nelson	2021-03-30
9045379	Plant growth substrate medium	Steven D. Nelson, Michael D. Nelson, Daniel S. Nelson	2015-06-02

David Johnston — 2 Patents

Issued Patents All Time

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