Search

Celia C Chang

Examiner (ID: 17719, Phone: (571)272-0679 , Office: P/1625 )

Most Active Art Unit
1625
Art Unit(s)
1625, 1202, 1612, 1203, 2899
Total Applications
3041
Issued Applications
1833
Pending Applications
177
Abandoned Applications
1031

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 2889023 [patent_doc_number] => 05214212 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-05-25 [patent_title] => 'Promoters for hydrogenation of aromatic amines' [patent_app_type] => 1 [patent_app_number] => 7/842822 [patent_app_country] => US [patent_app_date] => 1992-02-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3858 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/214/05214212.pdf [firstpage_image] =>[orig_patent_app_number] => 842822 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/842822
Promoters for hydrogenation of aromatic amines Feb 26, 1992 Issued
07/841010 METHOD OF PREPARING 3-AMINOMETHYL 3,5,5-TRIMETHYLCYCLOHEXYL AMINE Feb 24, 1992 Abandoned
Array ( [id] => 2934976 [patent_doc_number] => 05229424 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-07-20 [patent_title] => 'Pesticidal cyclopropyl 2,4-dieneamides' [patent_app_type] => 1 [patent_app_number] => 7/835683 [patent_app_country] => US [patent_app_date] => 1992-02-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9822 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 114 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/229/05229424.pdf [firstpage_image] =>[orig_patent_app_number] => 835683 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/835683
Pesticidal cyclopropyl 2,4-dieneamides Feb 13, 1992 Issued
07/830749 METHOD OF SYNTHESIS OF SULPHONYLIMIDES Feb 6, 1992 Abandoned
07/831712 METHOD OF INCREASING HYDROGENATION RATE OF AROMATIC AMINES Feb 4, 1992 Abandoned
Array ( [id] => 2895995 [patent_doc_number] => 05244924 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-09-14 [patent_title] => 'Diluent for perfluorocarbons employed for retinal unfolding (unfolding PFCL) and method of treatment' [patent_app_type] => 1 [patent_app_number] => 7/823652 [patent_app_country] => US [patent_app_date] => 1992-01-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1052 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 137 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/244/05244924.pdf [firstpage_image] =>[orig_patent_app_number] => 823652 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/823652
Diluent for perfluorocarbons employed for retinal unfolding (unfolding PFCL) and method of treatment Jan 23, 1992 Issued
Array ( [id] => 2788860 [patent_doc_number] => 05155274 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-10-13 [patent_title] => 'Complex compounds containing sulfonated phenyl phosphanes' [patent_app_type] => 1 [patent_app_number] => 7/822943 [patent_app_country] => US [patent_app_date] => 1992-01-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 18232 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 167 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/155/05155274.pdf [firstpage_image] =>[orig_patent_app_number] => 822943 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/822943
Complex compounds containing sulfonated phenyl phosphanes Jan 20, 1992 Issued
07/817975 CHARGE TRANSPORTING MATERIALS AND ELECTROPHOTOGRAPHIC PHOTOCONDUCTORS USING THE SAME Jan 7, 1992 Abandoned
Array ( [id] => 3594685 [patent_doc_number] => 05488165 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1996-01-30 [patent_title] => 'Process for the production of methyl amines' [patent_app_type] => 1 [patent_app_number] => 7/815626 [patent_app_country] => US [patent_app_date] => 1991-12-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2487 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 221 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/488/05488165.pdf [firstpage_image] =>[orig_patent_app_number] => 815626 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/815626
Process for the production of methyl amines Dec 29, 1991 Issued
Array ( [id] => 2956868 [patent_doc_number] => 05231228 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-07-27 [patent_title] => 'Process for the preparation of saturated primary fatty amines by hydrogenation of the corresponding unsaturated primary fatty amines' [patent_app_type] => 1 [patent_app_number] => 7/806042 [patent_app_country] => US [patent_app_date] => 1991-12-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2605 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 79 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/231/05231228.pdf [firstpage_image] =>[orig_patent_app_number] => 806042 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/806042
Process for the preparation of saturated primary fatty amines by hydrogenation of the corresponding unsaturated primary fatty amines Dec 11, 1991 Issued
Array ( [id] => 2834326 [patent_doc_number] => 05175370 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-12-29 [patent_title] => 'Process for the preparation of saturated primary fatty amines by hydrogenation of unsaturated fatty acid nitriles' [patent_app_type] => 1 [patent_app_number] => 7/806585 [patent_app_country] => US [patent_app_date] => 1991-12-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4760 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 212 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/175/05175370.pdf [firstpage_image] =>[orig_patent_app_number] => 806585 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/806585
Process for the preparation of saturated primary fatty amines by hydrogenation of unsaturated fatty acid nitriles Dec 11, 1991 Issued
Array ( [id] => 2964254 [patent_doc_number] => 05274118 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-12-28 [patent_title] => 'Process for preparing (2R)-methyl-4,4,4-trifluorobutylamine' [patent_app_type] => 1 [patent_app_number] => 7/803291 [patent_app_country] => US [patent_app_date] => 1991-12-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7914 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 22 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/274/05274118.pdf [firstpage_image] =>[orig_patent_app_number] => 803291 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/803291
Process for preparing (2R)-methyl-4,4,4-trifluorobutylamine Dec 3, 1991 Issued
Array ( [id] => 2805486 [patent_doc_number] => 05145958 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-09-08 [patent_title] => 'Process for the preparation of 2,4- or 2,6-dihalogeno-aniline' [patent_app_type] => 1 [patent_app_number] => 7/799918 [patent_app_country] => US [patent_app_date] => 1991-11-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3073 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 185 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/145/05145958.pdf [firstpage_image] =>[orig_patent_app_number] => 799918 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/799918
Process for the preparation of 2,4- or 2,6-dihalogeno-aniline Nov 25, 1991 Issued
Array ( [id] => 3048917 [patent_doc_number] => 05304681 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-04-19 [patent_title] => 'Tert-butylamine synthesis over montmorillonite clays' [patent_app_type] => 1 [patent_app_number] => 7/894841 [patent_app_country] => US [patent_app_date] => 1991-11-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 5646 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 41 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/304/05304681.pdf [firstpage_image] =>[orig_patent_app_number] => 894841 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/894841
Tert-butylamine synthesis over montmorillonite clays Nov 21, 1991 Issued
07/788548 PROCESS FOR THE PREPARATION OF N-METHYLALKYLAMINES Nov 5, 1991 Abandoned
Array ( [id] => 3539406 [patent_doc_number] => 05494934 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1996-02-27 [patent_title] => 'Guanidine compounds' [patent_app_type] => 1 [patent_app_number] => 7/787374 [patent_app_country] => US [patent_app_date] => 1991-11-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3310 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 146 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/494/05494934.pdf [firstpage_image] =>[orig_patent_app_number] => 787374 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/787374
Guanidine compounds Nov 3, 1991 Issued
Array ( [id] => 2971192 [patent_doc_number] => 05256394 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-10-26 [patent_title] => 'Radiological imaging method, and contrast media reagents therefor' [patent_app_type] => 1 [patent_app_number] => 7/781812 [patent_app_country] => US [patent_app_date] => 1991-10-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5463 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 8 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/256/05256394.pdf [firstpage_image] =>[orig_patent_app_number] => 781812 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/781812
Radiological imaging method, and contrast media reagents therefor Oct 22, 1991 Issued
07/777944 CONTINUOUS REDUCTION OF AN ALIPHATIC NITRO MOIETY TO A PRIMARY AMINO MOIETY Oct 16, 1991 Abandoned
Array ( [id] => 2911936 [patent_doc_number] => 05236956 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-08-17 [patent_title] => 'Compounds for the treatment of urinary incontinence' [patent_app_type] => 1 [patent_app_number] => 7/771813 [patent_app_country] => US [patent_app_date] => 1991-10-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5750 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 114 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/236/05236956.pdf [firstpage_image] =>[orig_patent_app_number] => 771813 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/771813
Compounds for the treatment of urinary incontinence Oct 6, 1991 Issued
Array ( [id] => 3022519 [patent_doc_number] => 05288905 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-02-22 [patent_title] => 'Glycyl urea derivatives as anti-convulsants' [patent_app_type] => 1 [patent_app_number] => 7/761111 [patent_app_country] => US [patent_app_date] => 1991-09-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6470 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 133 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/288/05288905.pdf [firstpage_image] =>[orig_patent_app_number] => 761111 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/761111
Glycyl urea derivatives as anti-convulsants Sep 16, 1991 Issued
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