Zellers; Dale A.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Zellers; Dale A..The latest application filed is for "energy efficient polyolefin process".

Company Profile

0.17.17

Zellers; Dale A. - Bartlesville OK

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Energy efficient polyolefin process Grant 9,610,558 - McElvain , et al. April 4, 2	2017-04-04
Energy Efficient Polyolefin Process App 20160101399 - McElvain; Robert R. ; et al.	2016-04-14
Pumping apparatus and process for polymerization in loop reactors Grant 9,266,974 - Hottovy , et al. February 23, 2	2016-02-23
Energy efficient polyolefin process Grant 9,221,920 - McElvain , et al. December 29, 2	2015-12-29
Multiple component feed methods and systems Grant 8,992,840 - Burns , et al. March 31, 2	2015-03-31
Energy Efficient Polyolefin Process App 20140256889 - McElvain; Robert R. ; et al.	2014-09-11
Energy efficient polyolefin process Grant 8,765,884 - McElvain , et al. July 1, 2	2014-07-01
Energy Efficient Polyolefin Process App 20140024788 - McElvain; Robert R. ; et al.	2014-01-23
Energy efficient polyolefin process Grant 8,569,433 - McElvain , et al. October 29, 2	2013-10-29
Pumping Apparatus And Process For Polymerization In Loop Reactors App 20130102742 - Hottovy; John D. ; et al.	2013-04-25
Energy Efficient Polyolefin Process App 20130056899 - McElvain; Robert R. ; et al.	2013-03-07
Pumping apparatus and process for polymerization in loop reactors Grant 8,354,063 - Hottovy , et al. January 15, 2	2013-01-15
Energy efficient polyolefin process Grant 8,303,899 - McElvain , et al. November 6, 2	2012-11-06
Energy Efficient Polyolefin Process App 20120139149 - McElvain; Robert R. ; et al.	2012-06-07
Energy efficient polyolefin process Grant 8,128,877 - McElvain , et al. March 6, 2	2012-03-06
Energy Efficient Polyolefin Process App 20110300025 - McElvain; Robert R. ; et al.	2011-12-08
Energy efficient polyolefin process Grant 8,017,701 - McElvain , et al. September 13, 2	2011-09-13
Pumping Apparatus And Process For Polymerization In Loop Reactors App 20100215550 - Hottovy; John D. ; et al.	2010-08-26
Pumping apparatus and process for polymerization in loop reactors Grant 7,736,597 - Hottovy , et al. June 15, 2	2010-06-15
Method and system to reduce polymerization reactor fouling Grant 7,645,841 - Shaw , et al. January 12, 2	2010-01-12
Multiple component feed methods and systems App 20090326168 - Burns; David H. ; et al.	2009-12-31
Multiple component feed methods and systems Grant 7,615,596 - Burns , et al. November 10, 2	2009-11-10
Multiple component feed methods and systems App 20070078238 - Burns; David H. ; et al.	2007-04-05
Large catalyst activator Grant 7,179,426 - Hottovy , et al. February 20, 2	2007-02-20
Pumping apparatus and process for polymerization in loop reactors App 20060159595 - Hottovy; John D. ; et al.	2006-07-20
Pumping apparatus for slurry polymerization in loop reactors Grant 7,014,821 - Hottovy , et al. March 21, 2	2006-03-21
Process and apparatus for reducing take-off valve plugging in a polymerization process Grant 7,015,289 - Hottovy , et al. March 21, 2	2006-03-21
Method and system to reduce polymerization reactor fouling App 20060045823 - Shaw; Benjamin M. ; et al.	2006-03-02
Process and apparatus for reducing take-off valve plugging in a polymerization process App 20040158007 - Hottovy, John D. ; et al.	2004-08-12
Pumping apparatus and process for slurry polymerization in loop reactors App 20040132928 - Hottovy, John D. ; et al.	2004-07-08
Loop reactor apparatus and polymerization processes with multiple feed points for olefins and catalysts App 20040116625 - Hottovy, John D. ; et al.	2004-06-17
Large catalyst activator App 20040052692 - Hottovy, John D. ; et al.	2004-03-18
Blow molding process Grant 6,605,247 - Zellers , et al. August 12, 2	2003-08-12
Blow molding process and apparatus for use therein App 20020195749 - Zellers, Dale A. ; et al.	2002-12-26

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