C07C 7/135
Purification: by gas-chromatography
Official title: by gas-chromatography
C07C7/135 (Purification: by gas-chromatography) appears on 31 US grants and 25 published applications in this corpus.
Search patents in C07C- Granted patents
- 31
- Published applications
- 25
- Assignees
- 10
- Inventors
- 39
- Latest grant
- 16 Jul 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 10 |
| 2003 | 0 | 3 |
| 2004 | 7 | 6 |
| 2005 | 4 | 2 |
| 2006 | 3 | 0 |
| 2007 | 5 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method of making a wall-coated open tubular capillary column with a poly benzyl stationary phase16 Jul 2024US 12,037,318 B1King Saud University
- Separation method and separation process system for recovering ethylene6 Aug 2019US 10,371,442 B2LG Chem.Ltd.
- Process for the separation of unbranched hydrocarbons from their branched isomers25 Feb 2014US 8,658,849 B2BASF SE
- Polymerizable higher diamondoid derivatives16 Apr 2013US 8,420,768 B2Chevron U.S.A.Inc.
- Polymerizable higher diamondoid derivatives8 Feb 2011US 7,884,256 B2Chevron U.S.A.Inc.
- Marker set for evaluating the development of infant’s communication ability and use thereof8 Aug 2024US 2024/0264179 A1Beijing Sanyuan Foods Co., Ltd.
- Separation method and separation process system for recovering ethylene13 Jul 2017US 2017/0198967 A1LG Chem.Ltd.
- Polymerizable Higher Diamondoid Derivatives12 May 2011US 2011/0112258 A1Chevron U.S.A.Inc.
- Process for the separation of unbranched hydrocarbons from their branched isomers5 Aug 2010US 2010/0197990 A1BASF SE
- Polymerizable higher diamondoid derivatives21 Jul 2005US 2005/0159634 A1Chevron U.S.A.Inc.
Most cited
By later US patents
- Diamondoid-containing materials in microelectronics35US 6,783,589 B2Chevron U.S.A.Inc. · 2004
- Compositions comprising undecamantanes and processes for their separation15US 6,743,290 B2Chevron U.S.A.Inc. · 2004
- Polymerizable higher diamondoid derivatives12US 6,858,700 B2Chervon U.S.A. Inc. · 2005
- Methods and applications of preparative scale chromatography10US 4,042,350 ANational Research Development Corporation · 1977
- Adsorption material for olefins, gas chromatography column, method of selectively removing olefins from a mixture of hydrocarbons8US 4,652,280 APackard Instrument Company, Inc. · 1987