Chang; Clarence D.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chang; Clarence D..The latest application filed is for "method for converting alkanes to oxygenates".
Company Profile
0.137.2
- Chang; Clarence D. - Princeton NJ
Patent Activity
| Patent | Date |
|---|---|
| Hydroalkylation of aromatic hydrocarbons Grant 6,730,625 - Chang , et al. May 4, 2 | 2004-05-04 |
| Method for converting alkanes to oxygenates App 20020103402 - Chang, Clarence D. ; et al. | 2002-08-01 |
| Zeolite catalysts having stabilized hydrogenation-dehydrogenation function App 20020091293 - Chang, Clarence D. ; et al. | 2002-07-11 |
| Process for hydrocracking cycle oil Grant 6,224,748 - Chang , et al. May 1, 2 | 2001-05-01 |
| Process for co-production of dialkyl carbonate and alkanediol Grant 6,166,240 - Chang , et al. December 26, 2 | 2000-12-26 |
| Acid catalyst composition Grant 6,162,757 - Chang , et al. December 19, 2 | 2000-12-19 |
| Method for preparing an acidic solid oxide Grant 6,124,232 - Chang , et al. September 26, 2 | 2000-09-26 |
| Olefin epoxidation catalysts Grant 6,114,551 - Levin , et al. September 5, 2 | 2000-09-05 |
| Isomerization process Grant 6,080,904 - Chang , et al. June 27, 2 | 2000-06-27 |
| Hydroalkylation of aromatic hydrocarbons Grant 6,037,513 - Chang , et al. March 14, 2 | 2000-03-14 |
| Catalyst having an acidic solid oxide component and a group IB metal or metal oxide component Grant 5,902,767 - Kresge , et al. May 11, 1 | 1999-05-11 |
| Method for preparing a modified solid oxide Grant 5,854,170 - Chang , et al. December 29, 1 | 1998-12-29 |
| Selective monomethylation of aromatics with dimethylcarbonate Grant 5,804,690 - Chang , et al. September 8, 1 | 1998-09-08 |
| Process for producing low aromatic diesel fuel with high cetane index Grant 5,780,703 - Chang , et al. July 14, 1 | 1998-07-14 |
| Method for preparing a modified solid oxide Grant 5,780,382 - Chang , et al. July 14, 1 | 1998-07-14 |
| Method of preparation of ex situ selectivated zeolite catalysts for enhanced shape selective applications and methods to increase the activity thereof Grant 5,726,114 - Chang , et al. March 10, 1 | 1998-03-10 |
| Catalyst comprising a modified solid oxide Grant 5,719,097 - Chang , et al. February 17, 1 | 1998-02-17 |
| Catalytic oligomerization Grant 5,608,133 - Chang , et al. March 4, 1 | 1997-03-04 |
| Zeolite functionalized with organosiliceous groups Grant 5,571,768 - Chang , et al. November 5, 1 | 1996-11-05 |
| Toluene alkylation with methanol Grant 5,563,310 - Chang , et al. * October 8, 1 | 1996-10-08 |
| Process for preparing short chain alkyl aromatic compounds Grant 5,563,311 - Chang , et al. October 8, 1 | 1996-10-08 |
| Selective catalytic reduction of nitrogen oxides Grant 5,552,128 - Chang , et al. September 3, 1 | 1996-09-03 |
| Process for hydrotreating Grant 5,543,036 - Chang , et al. August 6, 1 | 1996-08-06 |
| Method for preparing a modified solid oxide Grant 5,510,309 - Chang , et al. April 23, 1 | 1996-04-23 |
| Regioselective methylation of toluene to para-xylene Grant 5,498,814 - Chang , et al. March 12, 1 | 1996-03-12 |
| Catalytic conversion of methanol to linear olefins Grant 5,491,273 - Santiesteban , et al. February 13, 1 | 1996-02-13 |
| Combined paraffin isomerization/ring opening process Grant 5,382,731 - Chang , et al. January 17, 1 | 1995-01-17 |
| Shape selective conversion of hydrocarbons over extrusion-modified molecular sieve Grant 5,365,003 - Chang , et al. November 15, 1 | 1994-11-15 |
| Shape selective hydrocarbon conversion over pre-selectivated, activated catalyst Grant 5,349,113 - Chang , et al. September 20, 1 | 1994-09-20 |
| Ring opening process Grant 5,345,026 - Chang , et al. September 6, 1 | 1994-09-06 |
| Process for the regioselective conversion of aromatics to para-disubstituted benzenes Grant 5,321,183 - Chang , et al. June 14, 1 | 1994-06-14 |
| Synthetic porous crystalline MCM-49, its synthesis and use Grant 5,236,575 - Bennett , et al. August 17, 1 | 1993-08-17 |
| Synthesis of crystalline ZSM-35 Grant 5,190,736 - Hellring , et al. March 2, 1 | 1993-03-02 |
| Synthesis of crystalline ZSM-5-type material Grant 5,174,977 - Chang , et al. December 29, 1 | 1992-12-29 |
| Selective ortho propylation of phenol over large pore zeolite Grant 5,175,375 - Chang , et al. December 29, 1 | 1992-12-29 |
| Toluene disproportionation catalyst Grant 5,173,461 - Absil , et al. December 22, 1 | 1992-12-22 |
| Synthesis of a synthetic porous crystalline material Grant 5,173,281 - Chang , et al. December 22, 1 | 1992-12-22 |
| Synthesis of crystalline silicoaluminophosphate composition Grant 5,169,614 - Chang , et al. * December 8, 1 | 1992-12-08 |
| Synthesis of crystalline silicoaluminophosphate composition Grant 5,147,627 - Chang , et al. * September 15, 1 | 1992-09-15 |
| Synthesis of crystalline aluminophosphate composition Grant 5,147,626 - Chang , et al. * September 15, 1 | 1992-09-15 |
| Preparation of hydroxyl-rich zeolites Grant 5,143,876 - Chang , et al. September 1, 1 | 1992-09-01 |
| Activation of zeolites using hydrate of trivalent metal fluoride Grant 5,126,296 - Han , et al. June 30, 1 | 1992-06-30 |
| Crystalline (metallo) aluminophosphate composition MCM-40, its synthesis and usage in hydrocarbon conversion Grant 5,104,495 - Chang , et al. April 14, 1 | 1992-04-14 |
| Synthesis of large pore zeolites containing gallium Grant 5,061,466 - Chang , et al. October 29, 1 | 1991-10-29 |
| Hydrocarbon conversion process including acidic zeolite reactivation Grant 5,001,094 - Chang , et al. March 19, 1 | 1991-03-19 |
| Activation of zeolites Grant 4,943,545 - Chang , et al. July 24, 1 | 1990-07-24 |
| Method for hydrocarbon dewaxing utilizing a reactivated spent MTG zeolite catalyst Grant 4,919,790 - Absil , et al. April 24, 1 | 1990-04-24 |
| Process for making alkyl pyrazines Grant 4,855,431 - Chang , et al. August 8, 1 | 1989-08-08 |
| Catalytic conversion over dehydroxylated zeolite Grant 4,790,928 - Chang , et al. December 13, 1 | 1988-12-13 |
| Dewaxing by isomerization Grant 4,788,378 - Chang , et al. November 29, 1 | 1988-11-29 |
| Catalytic conversion Grant 4,788,370 - Chang , et al. November 29, 1 | 1988-11-29 |
| Cracking/dewaxing Grant 4,784,749 - Chang , et al. November 15, 1 | 1988-11-15 |
| Catalytic conversion Grant 4,711,970 - Chang , et al. December 8, 1 | 1987-12-08 |
| Replacing boron with silicon in zeolite beta using SiCl.sub.4 Grant 4,701,313 - Chang , et al. October 20, 1 | 1987-10-20 |
| Method for reclaiming heat-damaged catalysts Grant 4,678,763 - Chang , et al. July 7, 1 | 1987-07-07 |
| Conversion of LPG hydrocarbons to distillate fuels or lubes using integration of LPG dehydrogenation and MOGDL Grant 4,678,645 - Chang , et al. * July 7, 1 | 1987-07-07 |
| Modification of crystalline microporous zeolites Grant 4,670,412 - Chang , et al. June 2, 1 | 1987-06-02 |
| Zeolite modification and its use in conversion of alcohols and ethers to hydrocarbons Grant 4,665,248 - Chang , et al. May 12, 1 | 1987-05-12 |
| Catalytic conversion of aromatic compounds Grant 4,665,255 - Chang , et al. May 12, 1 | 1987-05-12 |
| Formation of halogenated hydrocarbons from hydrocarbons Grant 4,654,449 - Chang , et al. March 31, 1 | 1987-03-31 |
| Catalytic conversion Grant 4,645,864 - Chang , et al. February 24, 1 | 1987-02-24 |
| Process for the preparation of zeolite Beta using dibenzyldimethylammonium ions and the product produced Grant 4,642,226 - Calvert , et al. * February 10, 1 | 1987-02-10 |
| Acid-catalyzed xylene isomerization Grant 4,638,105 - Chang , et al. January 20, 1 | 1987-01-20 |
| Catalytic cracking of using catalyst produced by novel process hydrocarbons Grant 4,624,774 - Chang , et al. November 25, 1 | 1986-11-25 |
| Acid-catalyzed hydrocarbon conversion process Grant 4,620,921 - Chang , et al. November 4, 1 | 1986-11-04 |
| Acid-catalyzed xylene isomerization Grant 4,620,054 - Chang , et al. October 28, 1 | 1986-10-28 |
| Acid-catalyzed organic compound conversion Grant 4,607,130 - Chang , et al. August 19, 1 | 1986-08-19 |
| Acid-catalyzed organic compound conversion Grant 4,605,805 - Chang , et al. August 12, 1 | 1986-08-12 |
| Hydrothermal activation of acid zeolites with aluminum phosphates Grant 4,605,637 - Chang , et al. * August 12, 1 | 1986-08-12 |
| Acid-catalyzed organic compound conversion Grant 4,605,803 - Chang , et al. August 12, 1 | 1986-08-12 |
| Activation of zeolites Grant 4,596,704 - Miale , et al. June 24, 1 | 1986-06-24 |
| Zeolite modification Grant 4,594,333 - Chang , et al. June 10, 1 | 1986-06-10 |
| Shape-selective catalytic oxidation of phenol Grant 4,578,521 - Chang , et al. March 25, 1 | 1986-03-25 |
| Increasing lattice metal content of porous inorganic crystalline compositions Grant 4,576,805 - Chang , et al. * March 18, 1 | 1986-03-18 |
| Zeolite modification Grant 4,559,315 - Chang , et al. December 17, 1 | 1985-12-17 |
| Olefin upgrading with ferrosilicate zeolite catalyst Grant 4,554,396 - Chang , et al. November 19, 1 | 1985-11-19 |
| Activity enhancement of high silica zeolites Grant 4,550,092 - Chang , et al. * October 29, 1 | 1985-10-29 |
| Conversion of oxygenates to hydrocarbons Grant 4,544,783 - Chang , et al. October 1, 1 | 1985-10-01 |
| Process for producing liquid hydrocarbon fuels Grant 4,543,434 - Chang September 24, 1 | 1985-09-24 |
| Conversion of LPG hydrocarbons to distillate fuels or lubes using integration of LPG dehydrogenation and MOGDL Grant 4,542,247 - Chang , et al. September 17, 1 | 1985-09-17 |
| Catalysis over activated high silica zeolites Grant 4,540,840 - Miale , et al. September 10, 1 | 1985-09-10 |
| Catalysis over activated zeolites Grant 4,540,841 - Miale , et al. September 10, 1 | 1985-09-10 |
| Catalysis over activated zeolites Grant 4,538,015 - Miale , et al. August 27, 1 | 1985-08-27 |
| Catalysis over activated zeolites Grant 4,538,014 - Miale , et al. August 27, 1 | 1985-08-27 |
| Catalysis over activated zeolites Grant 4,538,016 - Miale , et al. August 27, 1 | 1985-08-27 |
| Catalysis over activated high silica zeolites Grant 4,530,756 - Chang , et al. July 23, 1 | 1985-07-23 |
| Hydrothermal zeolite activation Grant 4,524,140 - Chang , et al. June 18, 1 | 1985-06-18 |
| Catalysis over activated high silica zeolites Grant 4,515,682 - Chang , et al. May 7, 1 | 1985-05-07 |
| Catalysis over activated high silica zeolites Grant 4,512,876 - Miale , et al. April 23, 1 | 1985-04-23 |
| Hydrothermal zeolite activation Grant 4,513,091 - Chang , et al. April 23, 1 | 1985-04-23 |
| Catalysis over activated zeolites Grant 4,500,420 - Miale , et al. February 19, 1 | 1985-02-19 |
| Catalysis over activated zeolites Grant 4,500,421 - Chang , et al. February 19, 1 | 1985-02-19 |
| Catalysis over activated zeolites Grant 4,500,419 - Miale , et al. February 19, 1 | 1985-02-19 |
| Catalysis over activated zeolites Grant 4,500,422 - Miale , et al. February 19, 1 | 1985-02-19 |
| Hydrocarbon synthesis Grant 4,480,143 - Chang , et al. October 30, 1 | 1984-10-30 |
| Conversion of alcohols and ethers to distillate range hydrocarbons Grant 4,467,133 - Chang , et al. August 21, 1 | 1984-08-21 |
| Activation of high silica zeolites Grant 4,444,902 - Chang , et al. April 24, 1 | 1984-04-24 |
| Activation of zeolites Grant 4,444,900 - Chang , et al. April 24, 1 | 1984-04-24 |
| Synthesis gas conversion to oxygenates Grant 4,444,909 - Chang , et al. April 24, 1 | 1984-04-24 |
| Catalyst for the conversion of synthesis gas to higher alcohols Grant 4,440,668 - Chang , et al. April 3, 1 | 1984-04-03 |
| Activity enhancement of high silica zeolites Grant 4,435,516 - Chang , et al. March 6, 1 | 1984-03-06 |
| Production of aromatic amines using crystalline silicate catalysts Grant 4,434,299 - Chang , et al. February 28, 1 | 1984-02-28 |
| Activation of zeolites Grant 4,427,789 - Miale , et al. January 24, 1 | 1984-01-24 |
| Activation of high silica zeolites Grant 4,427,786 - Miale , et al. January 24, 1 | 1984-01-24 |
| Activation of zeolites Grant 4,427,788 - Miale , et al. January 24, 1 | 1984-01-24 |
| Activation of zeolites Grant 4,427,787 - Miale , et al. January 24, 1 | 1984-01-24 |
| Activation of zeolites Grant 4,427,790 - Miale , et al. January 24, 1 | 1984-01-24 |
| Activation of inorganic oxides Grant 4,427,791 - Miale , et al. January 24, 1 | 1984-01-24 |
| Dimethyl ether synthesis catalyst Grant 4,423,155 - Bell , et al. December 27, 1 | 1983-12-27 |
| Process for producing alpha-picoline Grant 4,388,461 - Chang , et al. June 14, 1 | 1983-06-14 |
| Method for generating power upon demand Grant 4,341,069 - Bell , et al. July 27, 1 | 1982-07-27 |
| De-aluminization of aluminosilicates Grant 4,273,753 - Chang June 16, 1 | 1981-06-16 |
| Synthesis gas conversion Grant 4,237,063 - Bell , et al. December 2, 1 | 1980-12-02 |
| Synthesis of pyridine and alkylpyridines Grant 4,220,783 - Chang , et al. September 2, 1 | 1980-09-02 |
| Conversion of synthesis gas to aromatic hydrocarbons Grant 4,188,336 - Chang , et al. February 12, 1 | 1980-02-12 |
| Conversion of synthesis gas to aromatic hydrocarbons Grant 4,180,516 - Chang , et al. December 25, 1 | 1979-12-25 |
| Methanation of synthesis gas Grant 4,177,202 - Chang , et al. December 4, 1 | 1979-12-04 |
| Process for the manufacture of gasoline Grant 4,138,442 - Chang , et al. * February 6, 1 | 1979-02-06 |
| Conversion of liquid alcohols and ethers with a fluid mass of ZSM-5 type catalyst Grant 4,138,440 - Chang , et al. February 6, 1 | 1979-02-06 |
| Conversion of synthesis gas to hydrocarbon mixtures Grant 4,096,163 - Chang , et al. June 20, 1 | 1978-06-20 |
| Conversion of synthesis gas to hydrocarbon mixtures Grant 4,086,262 - Chang , et al. April 25, 1 | 1978-04-25 |
| Process for the manufacture of gasoline Grant 4,076,761 - Chang , et al. * February 28, 1 | 1978-02-28 |
| Manufacture of light olefins Grant 4,062,905 - Chang , et al. December 13, 1 | 1977-12-13 |
| Conversion of methanol to gasoline components Grant 4,058,576 - Chang , et al. November 15, 1 | 1977-11-15 |
| Conversion of methanol to olefinic components Grant 4,052,479 - Chang , et al. * October 4, 1 | 1977-10-04 |
| Preheating methanol effects steady state operation of conversion to gasoline Grant 4,044,061 - Chang , et al. August 23, 1 | 1977-08-23 |
| Conversion of synthesis gas to aromatic hydrocarbons Grant 4,039,600 - Chang August 2, 1 | 1977-08-02 |
| Process for manufacturing olefins Grant 4,025,576 - Chang , et al. May 24, 1 | 1977-05-24 |
| Conversion of methanol to gasoline with minimum durene production Grant 4,013,732 - Chang , et al. March 22, 1 | 1977-03-22 |
| Manufacture of gasoline Grant 3,998,898 - Chang , et al. December 21, 1 | 1976-12-21 |
| Conversion of alcohols and/or ethers to hydrocarbons Grant 3,969,427 - Bell , et al. July 13, 1 | 1976-07-13 |
| Conversion of carbonyl compounds to aromatics Grant 3,907,915 - Chang , et al. September 23, 1 | 1975-09-23 |
| Conversion of alcohols and ethers to hydrocarbons Grant 3,899,544 - Chang , et al. August 12, 1 | 1975-08-12 |
| Aromatization reactions Grant 3,894,103 - Chang , et al. July 8, 1 | 1975-07-08 |
| Production of durene Grant 3,894,105 - Chang , et al. July 8, 1 | 1975-07-08 |
| Aromatization of hetero-atom substituted hydrocarbons Grant 3,894,104 - Chang , et al. July 8, 1 | 1975-07-08 |
| Conversion of ethers Grant 3,894,106 - Chang , et al. July 8, 1 | 1975-07-08 |
| Conversion of synthesis gas to gasoline Grant 3,894,102 - Chang , et al. July 8, 1 | 1975-07-08 |
| Catalyst For The Demetalation Of A Hydrocarbon Charge Stock Grant 3,772,185 - Chang , et al. November 13, 1 | 1973-11-13 |
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