Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8884084 | Process for the manufacture of halocarbons and selected compounds and azeotropes with HF | Ralph Thomas Baker, Viacheslav A. Petrov, Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert | 2014-11-11 |
| 8399723 | Processes for production and purification of hydrofluoroolefins | Mario Joseph Nappa, Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert | 2013-03-19 |
| 8377327 | Tetrafluoropropene production processes | Velliyur Nott Mallikarjuna Rao, Mario Joseph Nappa, Allen Capron Sievert | 2013-02-19 |
| 7709438 | Azeotrope compositions comprising nonafluoropentene and hydrogen fluoride and uses thereof | Mario Joseph Nappa, Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert | 2010-05-04 |
| 7476771 | Azeotrope compositions comprising 2,3,3,3-tetrafluoropropene and hydrogen fluoride and uses thereof | Mario Joseph Nappa, Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert | 2009-01-13 |
| 7423188 | Azeotrope compositions comprising E-1,3,3,3-tetrafluoropropene and hydrogen fluoride and uses thereof | Mario Joseph Nappa, Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert | 2008-09-09 |
| 7388117 | Azeotrope compositions comprising 1,2,3,3,3-pentafluoropropene and hydrogen fluoride and uses thereof | Barbara Haviland Minor, Mario Joseph Nappa, Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert | 2008-06-17 |
| 7385094 | Azeotrope compositions comprising tridecafluoro-3-heptene and hydrogen fluoride and uses thereof | Mario Joseph Nappa, Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert | 2008-06-10 |
| 7371309 | Purification of difluoromethane by extractive distillation | Sara W. Boehmer, Barry Asher Mahler | 2008-05-13 |
| 6900362 | Vapor phase production of 1,1,1,2,3,3,3-heptafluoropropane from hydrogen fluoride and hexafluoropropylene | Mario Joseph Nappa, Donald J. Toton | 2005-05-31 |
| 6858762 | Process for the manufacture of halocarbons and selected compounds and azeotropes with HF | Ralph Thomas Baker, Viacheslav A. Petrov, Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert | 2005-02-22 |
| 6755942 | Process for the manufacture of halocarbons and selected compounds and azeotropes with HF | Ralph Thomas Baker, Viacheslav A. Petrov, Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert | 2004-06-29 |
| 6677493 | Processes for the purification and use of 2-chloro-1,1,1,2,3,3,3-heptafluoropropane and zeotropes thereof with HF | V. N. Mallikarjuna Rao, Steven H. Swearingen | 2004-01-13 |
| 6458249 | Process for purifying perfluorinated products | Chien-Ping Kao, Barry Asher Mahler | 2002-10-01 |
| 6303838 | Separating 1,1,1,3,3-pentafluoropropane from hydrogen fluoride | Sara W. Boehmer, Barry Asher Mahler | 2001-10-16 |
| 6291727 | Azeotropic or azeotrop-like compositions of hydrofluoric acid with dihaloethanes | Maria U. D. Beug-Deeb, Barry Asher Mahler | 2001-09-18 |
| 6221830 | Purification process for hexafluoroethane products | Mark Richard Deschere, Barry Asher Mahler, Olagappan Muthu | 2001-04-24 |
| 6211135 | Processes for the purification and use of 2,2-dichloro-1,1,1,3,3,3-hexafluoropropane and azeotropes thereof with HF | V. N. Mallikarjuna Rao, Steven H. Swearingen | 2001-04-03 |
| 6156161 | Extractive distillation process for separating difluoromethane and pentafluoroethane using methylene chloride | — | 2000-12-05 |
| 6077819 | Azeotropes of chlorofluoroethanes of the formula CF.sub.3 CC1.sub.2+x ub . F.s1-x with HF and manufacturing processes therewith | Barry Asher Mahler, V. N. Mallikarjuna Rao | 2000-06-20 |
| 5948213 | Processes for the manufacture and purification of 1,1,2,2,3,3,4,4-octafluorobutane and by-products, and azeotropes with HF | V. N. Mallikarjuna Rao, Allen Capron Sievert | 1999-09-07 |
| 5874657 | Process for the purification of 1,1-difluoroethane | Barry Asher Mahler | 1999-02-23 |
| 5830325 | Separating and removing 1, 1, 1-trifluoroethane by using azeotropic distillation | Barry Asher Mahler | 1998-11-03 |
| 5817893 | Processes for the manufacture and purification of 1,1,2,2,3,3,4,4-octafluorobutane and by-products | V. N. Mallikarjuna Rao, Allen Capron Sievert | 1998-10-06 |
| 5789633 | Azeotropic or azeotrope-like compositions of hydrofluoric acid with dihaloethanes | Maria U. D. Beug-Deeb, Barry Asher Mahler | 1998-08-04 |