Inventor · disambiguated record

Douglas S. Vandergriff

Also filed as: VANDERGRIFF DOUGLAS S

2 granted patents·52 citations·filing 1994–1996

66Inventor score

Technology areasB31B

Files with21ST CENTURY CONTAINERS LTD2

Top patents by PatentIndex Score

2 records

0173US5680959ABulk container with removable liner, discharge fitment for the liner, and adapter for connection to discharge port of the container21ST CENTURY CONTAINERS LTD·Filed 1996·Granted Oct 28, 1997·34 cites·7 claims
0259US5586690ABulk container with removable liner, discharge fitment for the liner, and adapter for connection to discharge port of the container21ST CENTURY CONTAINERS LTD·Filed 1994·Granted Dec 24, 1996·18 cites·11 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →