Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9610558 | Energy efficient polyolefin process | Robert R. McElvain, John D. Hottovy, Ralph W. Romig, Donald W. Verser, David H. Burns +6 more | 2017-04-04 |
| 9266974 | Pumping apparatus and process for polymerization in loop reactors | John D. Hottovy, Robert Franklin, Donald Paul Russell | 2016-02-23 |
| 9221920 | Energy efficient polyolefin process | Robert R. McElvain, John D. Hottovy, Ralph W. Romig, Donald W. Verser, David H. Burns +6 more | 2015-12-29 |
| 8992840 | Multiple component feed methods and systems | David H. Burns, Donald W. Verser, Elizabeth A. Benham, Max P. McDaniel, John D. Hottovy +7 more | 2015-03-31 |
| 8765884 | Energy efficient polyolefin process | Robert R. McElvain, John D. Hottovy, Ralph W. Romig, Donald W. Verser, David H. Burns +6 more | 2014-07-01 |
| 8569433 | Energy efficient polyolefin process | Robert R. McElvain, John D. Hottovy, Ralph W. Romig, Donald W. Verser, David H. Burns +6 more | 2013-10-29 |
| 8354063 | Pumping apparatus and process for polymerization in loop reactors | John D. Hottovy, Robert Franklin, Donald Paul Russell | 2013-01-15 |
| 8303899 | Energy efficient polyolefin process | Robert R. McElvain, John D. Hottovy, Ralph W. Romig, Donald W. Verser, David H. Burns +6 more | 2012-11-06 |
| 8128877 | Energy efficient polyolefin process | Robert R. McElvain, John D. Hottovy, Ralph W. Romig, Donald W. Verser, David H. Burns +6 more | 2012-03-06 |
| 8017701 | Energy efficient polyolefin process | Robert R. McElvain, John D. Hottovy, Ralph W. Romig, Donald W. Verser, David H. Burns +6 more | 2011-09-13 |
| 7736597 | Pumping apparatus and process for polymerization in loop reactors | John D. Hottovy, Robert Franklin, Donald Paul Russell | 2010-06-15 |
| 7645841 | Method and system to reduce polymerization reactor fouling | Benjamin Milton Shaw, John D. Hottovy | 2010-01-12 |
| 7615596 | Multiple component feed methods and systems | David H. Burns, Donald W. Verser, Elizabeth A. Benham, Max P. McDaniel, John D. Hottovy +7 more | 2009-11-10 |
| 7179426 | Large catalyst activator | John D. Hottovy, James E. Hein | 2007-02-20 |
| 7014821 | Pumping apparatus for slurry polymerization in loop reactors | John D. Hottovy, Robert Franklin | 2006-03-21 |
| 7015289 | Process and apparatus for reducing take-off valve plugging in a polymerization process | John D. Hottovy, Randy L. Hagenson | 2006-03-21 |
| 6605247 | Blow molding process | Jimmie L. Dean, Thomas O. Morton, Matthew P. Clark, Don L. Peters | 2003-08-12 |
| 6435856 | Blow molding apparatus with fixedly positioned pin and reciprocating sleeve | Jimmie L. Dean, Thomas O. Morton, Matthew P. Clark, Don L. Peters | 2002-08-20 |
| 4186061 | Fractionation of methyl-mercaptan reactor effluent | Joseph W. Clark | 1980-01-29 |