L. D. Hall — 2 Patents at Beyond Zero

L. D. Hall has been granted 2 US patents while listed as an inventor at Beyond Zero. The first was granted in 1991 and the most recent in February 2019. L. D. Hall ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list L. D. Hall in Louisville, KY, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
10208996	Ice tray assembly	Jason Sherman, D. Paul Haviland, Grayson Paul Newland, G. Andrew Wiehebrink	2019-02-19
5018581	Sand release apparatus and method	—	1991-05-28

L. D. Hall — 2 Patents

Issued Patents All Time

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