Inventor

VON KEITZ MARC

US2 patents

⚠️ This page may combine multiple inventors who share the name “VON KEITZ MARC”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HEILMANN STEVEN M

1 patent

US8414664B2Apr 9, 2013

Algal coal and process for preparing same

HEILMANN STEVEN M10 citations77

SCHENDEL FREDERICK J

1 patent

US8999030B2Apr 7, 2015

Methods of producing coal and fertilizers from fermentation residues

SCHENDEL FREDERICK J3 citations48