Inventor · disambiguated record
Michael Koolman
Also filed as: KOOLMAN MICHAEL
2 granted patents·4 citations·filing 2010–2011
43Inventor score
Technology areasE21B
Top patents by PatentIndex Score
2 records- 0171US9574430B2Device and method for obtaining, especially in situ, a carbonaceous substance from an underground depositDIEHL DIRK·Filed 2011·Granted Feb 21, 2017·4 cites·6 claims
- 0220US9175545B2Device and method for obtaining, in particular in situ, a substance containing carbon from an underground depositKOOLMAN MICHAEL·Filed 2010·Granted Nov 3, 2015·0 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →