Rohlfing; David C.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Rohlfing; David C..The latest application filed is for "controlling melt fracture in bimodal resin pipe".

Company Profile

0.29.27

Rohlfing; David C. - Bloomington IN
Rohlfing; David C. - Bartlesville OK
Rohlfing; David C. - Bartlesvile 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
Catalyst systems and methods of making and using same Grant 8,932,975 - Yang , et al. January 13, 2	2015-01-13
Hyperbranched polymers and methods of making and using same Grant 8,933,175 - Yu , et al. January 13, 2	2015-01-13
Controlling melt fracture in bimodal resin pipe Grant 8,771,816 - DesLauriers , et al. July 8, 2	2014-07-08
Polymerization catalysts for producing polymers with low melt elasticity Grant 8,637,691 - Yang , et al. January 28, 2	2014-01-28
Controlling Melt Fracture in Bimodal Resin Pipe App 20130323450 - DesLauriers; Paul J. ; et al.	2013-12-05
Controlling Melt Fracture in Bimodal Resin Pipe App 20130319131 - Inn; Yongwoo ; et al.	2013-12-05
Controlling Melt Fracture in Bimodal Resin Pipe App 20130325363 - DesLauriers; Paul J. ; et al.	2013-12-05
Polymerization Catalysts For Producing Polymers With Low Melt Elasticity App 20130245302 - Yang; Qing ; et al.	2013-09-19
Process for producing broader molecular weight distribution polymers with a reverse comonomer distribution and low levels of long chain branches Grant 8,475,899 - Yang , et al. July 2, 2	2013-07-02
Polymerization catalysts for producing polymers with low melt elasticity Grant 8,450,437 - Yang , et al. May 28, 2	2013-05-28
Hyperbranched Polymers and Methods of Making and Using Same App 20130059982 - YU; Youlu ; et al.	2013-03-07
Process for Producing Broader Molecular Weight Distribution Polymers with a Reverse Comonomer Distribution and Low Levels of Long Chain Branches App 20120141710 - Yang; Qing ; et al.	2012-06-07
Polymerization Catalysts For Producing Polymers With Low Melt Elasticity App 20120108765 - Yang; Qing ; et al.	2012-05-03
Novel Catalyst Systems and Methods of Making and Using Same App 20120059134 - YANG; Qing ; et al.	2012-03-08
Polymerization catalysts for producing polymers with low melt elasticity Grant 8,119,553 - Yang , et al. February 21, 2	2012-02-21
Process for producing broader molecular weight distribution polymers with a reverse comonomer distribution and low levels of long chain branches Grant 8,114,946 - Yang , et al. February 14, 2	2012-02-14
Method for employing SEC-FTIR data to predict mechanical properties of polyethylene Grant 8,048,679 - DesLauriers , et al. November 1, 2	2011-11-01
System and method for estimating density of a polymer App 20110035193 - Deslauriers; Paul J. ; et al.	2011-02-10
Method For Employing Sec-ftir Data To Predict Mechanical Properties Of Polyethylene App 20100319440 - DesLauriers; Paul J. ; et al.	2010-12-23
Olefin polymers, method of making, and use thereof Grant 7,829,646 - DesLauriers , et al. November 9, 2	2010-11-09
Method for employing SEC-FTIR data to predict mechanical properties of polyethylene Grant 7,803,629 - DesLauriers , et al. September 28, 2	2010-09-28
Process For Producing Broader Molecular Weight Distribution Polymers With A Reverse Comonomer Distribution And Low Levels Of Long Chain Branches App 20100160579 - Yang; Qing ; et al.	2010-06-24
Polymerization catalysts for producing high molecular weight polymers with low levels of long chain branching Grant 7,732,542 - Yang , et al. June 8, 2	2010-06-08
Polymerization Catalysts For Producing High Molecular Weight Polymers With Low Levels Of Long Chain Branching App 20100069582 - YANG; QING ; et al.	2010-03-18
Polymerization catalysts for producing high molecular weight polymers with low levels of long chain branching Grant 7,652,160 - Yang , et al. January 26, 2	2010-01-26
Polymerization Catalysts For Producing High Molecular Weight Polymers With Low Levels Of Long Chain Branching App 20090281342 - Yang; Qing ; et al.	2009-11-12
Polyethylene compositions and pipe made from same Grant 7,589,162 - Krishnaswamy , et al. September 15, 2	2009-09-15
Polymerization catalysts for producing polymers with low levels of long chain branching Grant 7,576,163 - Yang , et al. August 18, 2	2009-08-18
Organometal compound catalyst Grant 7,547,754 - McDaniel , et al. June 16, 2	2009-06-16
Polymerization catalysts for producing high molecular weight polymers with low levels of long chain branching Grant 7,517,939 - Yang , et al. April 14, 2	2009-04-14
Polymerization catalysts for producing polymers with low melt elasticity App 20090088543 - Yang; Qing ; et al.	2009-04-02
Organometal compound catalyst Grant 7,417,097 - Yu , et al. August 26, 2	2008-08-26
Method for employing SEC-FTIR data to predict mechanical properties of polyethylene App 20070298508 - DesLauriers; Paul J. ; et al.	2007-12-27
Polymerization catalysts for producing polymers with low levels of long chain branching App 20070232483 - Yang; Qing ; et al.	2007-10-04
Organometal compound catalyst App 20070197752 - McDaniel; Max P. ; et al.	2007-08-23
Polyethylene compositions and pipe made from same App 20070197716 - Krishnaswamy; Rajendra K. ; et al.	2007-08-23
Polymerization catalysts for producing high molecular weight polymers with low levels of long chain branching App 20070179044 - Yang; Qing ; et al.	2007-08-02
Polymeric pipe and method of making a polymeric pipe App 20070048472 - Krishnaswamy; Rajendra K. ; et al.	2007-03-01
Organometal compound catalyst App 20060287447 - Yu; Youlu ; et al.	2006-12-21
Measurement of short chain branching in olefin copolymers using chemometric analysis Grant 7,056,744 - DesLauriers , et al. June 6, 2	2006-06-06
Olefin polymers, method of making, and use thereof App 20060079656 - DesLauriers; Paul J. ; et al.	2006-04-13
Olefin polymers, method of making, and use thereof App 20050154159 - DesLauriers, Paul J. ; et al.	2005-07-14
Olefin polymers, method of making, and use thereof Grant 6,867,278 - McDaniel , et al. March 15, 2	2005-03-15
Organometal compound catalyst Grant 6,833,338 - McDaniel , et al. December 21, 2	2004-12-21
Measurement of short chain branching in olefin copolymers using chemometric analysis App 20040033615 - DesLauriers, Paul J. ; et al.	2004-02-19
Organometal compound catalyst App 20030232716 - McDaniel, Max P. ; et al.	2003-12-18
Olefin polymers, method of making, and use thereof App 20030199648 - McDaniel, Max P. ; et al.	2003-10-23
Measurement of short chain branching in olefin copolymers using chemometric analysis Grant 6,632,680 - DesLauriers , et al. October 14, 2	2003-10-14
Films comprising metallocene catalyzed polyethylene Grant 6,214,469 - Sukhadia , et al. April 10, 2	2001-04-10
Method for producing polymer of ethylene Grant 5,710,224 - Alt , et al. January 20, 1	1998-01-20
Photoelectrochemical cell Grant 4,628,013 - Figard , et al. December 9, 1	1986-12-09

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