Assignee
BARBEE PHIL
US·5 granted patents·121 citations·filing 2009–2012
Technology mixE21B5
Top patents by PatentIndex Score
5 records- 0197US8651174B2Method and apparatus for dropping a pump down plug or ballBARBEE PHIL·Filed 2011·Granted Feb 18, 2014·39 cites·41 claims
- 0296US8256515B2Method and apparatus for dropping a pump down plug or ballBARBEE PHIL·Filed 2009·Granted Sep 4, 2012·45 cites·28 claims
- 0394US8622130B2Method and apparatus for dropping a pump down plug or ballBARBEE PHIL·Filed 2012·Granted Jan 7, 2014·13 cites·30 claims
- 0491US8215396B2Method and apparatus for dropping a pump down plug or ballBARBEE PHIL·Filed 2010·Granted Jul 10, 2012·13 cites·22 claims
- 0590US8573301B2Method and apparatus for dropping a pump down plug or ballBARBEE PHIL·Filed 2012·Granted Nov 5, 2013·11 cites·34 claims
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →