Inventor · disambiguated record
Mark Alan Hartfield
Also filed as: HARTFIELD MARK A · HARTFIELD MARK ALAN
9 granted patents·16 citations·filing 2004–2006
83Inventor score
Top patents by PatentIndex Score
9 records- 0172US7368916B2Apparatus and methods for making capacitive measurements of cathode fall in fluorescent lampsLUTRON ELECTRONICS CO·Filed 2006·Granted May 6, 2008·3 cites·15 claims
- 0271US7339322B2Apparatus and methods for making spectroscopic measurements of cathode fall in fluorescent lampsLUTRON ELECTRONICS CO·Filed 2006·Granted Mar 4, 2008·3 cites·6 claims
- 0365US7070738B2Analyzer with variable volume ballast chamber and method of analysisLECO CORP·Filed 2004·Granted Jul 4, 2006·7 cites·34 claims
- 0452US7116055B2Apparatus and methods for making spectroscopic measurements of cathode fall in fluorescent lampsLUTRON ELECTRONICS CO·Filed 2004·Granted Oct 3, 2006·3 cites·11 claims
- 0551US7323877B2Apparatus and methods for making spectroscopic measurements of cathode fall in fluorescent lampsLUTRON ELECTRONICS CO·Filed 2006·Granted Jan 29, 2008·0 cites·20 claims
- 0650US7224124B2Apparatus and methods for making capacitive measurements of cathode fall in fluorescent lampsLUTRON ELECTRONICS CO·Filed 2006·Granted May 29, 2007·0 cites·12 claims
- 0750US7196476B2Apparatus and methods for making capacitive measurements of cathode fall in fluorescent lampsLUTRON ELECTRONICS CO·Filed 2006·Granted Mar 27, 2007·0 cites·20 claims
- 0849US7259519B2Apparatus and methods for making capacitive measurements of cathode fall in fluorescent lampsLUTRON ELECTRONICS CO·Filed 2005·Granted Aug 21, 2007·0 cites·13 claims
- 0941US7002301B2Apparatus and methods for making capacitive measurements of cathode fall in fluorescent lampsLUTRON ELECTRONICS CO·Filed 2004·Granted Feb 21, 2006·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →