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] => 3081036 [patent_doc_number] => 05321161 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-06-14 [patent_title] => 'Hydrogenation of nitriles by a tungsten carbide catalyst' [patent_app_type] => 1 [patent_app_number] => 8/062673 [patent_app_country] => US [patent_app_date] => 1993-05-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2101 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 30 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/321/05321161.pdf [firstpage_image] =>[orig_patent_app_number] => 062673 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/062673
Hydrogenation of nitriles by a tungsten carbide catalyst May 16, 1993 Issued
Array ( [id] => 3055894 [patent_doc_number] => 05344979 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-09-06 [patent_title] => 'Process for preparing color-stabilized acetaminophen' [patent_app_type] => 1 [patent_app_number] => 8/054733 [patent_app_country] => US [patent_app_date] => 1993-04-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2468 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 65 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/344/05344979.pdf [firstpage_image] =>[orig_patent_app_number] => 054733 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/054733
Process for preparing color-stabilized acetaminophen Apr 28, 1993 Issued
08/055715 CONTRAST AGENTS AND COMPOSITIONS FOR RADIOLOGICAL IMAGING AND RADIOLOGICAL IMAGING METHOD UTILIZING SAME Apr 27, 1993 Pending
08/054926 ANTIMICROBIAL AGENTS AND USE THEREOF IN OPHTHALMIC COMPOSITIONS Apr 27, 1993 Pending
Array ( [id] => 3047986 [patent_doc_number] => 05334763 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-08-02 [patent_title] => 'Processes for making ethanolamines' [patent_app_type] => 1 [patent_app_number] => 8/051719 [patent_app_country] => US [patent_app_date] => 1993-04-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 2604 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 55 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/334/05334763.pdf [firstpage_image] =>[orig_patent_app_number] => 051719 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/051719
Processes for making ethanolamines Apr 21, 1993 Issued
08/045817 PROCESS FOR PREPARING PRIMARY AMINES AND CATALYST SYSTEM SUITABLE THEREFOR Apr 8, 1993 Pending
Array ( [id] => 3055988 [patent_doc_number] => 05344984 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-09-06 [patent_title] => 'Method for preparing \"twin-tailed\" polyoxyalkylene tertiary amines' [patent_app_type] => 1 [patent_app_number] => 8/045284 [patent_app_country] => US [patent_app_date] => 1993-04-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4636 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 88 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/344/05344984.pdf [firstpage_image] =>[orig_patent_app_number] => 045284 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/045284
Method for preparing "twin-tailed" polyoxyalkylene tertiary amines Apr 7, 1993 Issued
Array ( [id] => 3068228 [patent_doc_number] => 05352822 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-10-04 [patent_title] => 'Pesticides' [patent_app_type] => 1 [patent_app_number] => 8/043817 [patent_app_country] => US [patent_app_date] => 1993-04-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9824 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 267 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/352/05352822.pdf [firstpage_image] =>[orig_patent_app_number] => 043817 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/043817
Pesticides Apr 6, 1993 Issued
Array ( [id] => 3115158 [patent_doc_number] => 05409957 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-04-25 [patent_title] => 'Phenoxyalkylamine and agricultural and horticultural bactericide' [patent_app_type] => 1 [patent_app_number] => 8/035903 [patent_app_country] => US [patent_app_date] => 1993-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9226 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 56 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/409/05409957.pdf [firstpage_image] =>[orig_patent_app_number] => 035903 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/035903
Phenoxyalkylamine and agricultural and horticultural bactericide Mar 22, 1993 Issued
08/022685 PROCESS FOR THE PREPARATION OF ALCOHOLS OR AMINES Feb 28, 1993 Abandoned
08/023501 COGNITION-ENHANCING SELECTIVE ADENOSINE RECEPTOR AGENTS Feb 25, 1993 Abandoned
Array ( [id] => 3053089 [patent_doc_number] => 05283366 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-02-01 [patent_title] => 'Method of preparing 3-aminomethyl-3,5,5-trimethyl cyclohexyl amine' [patent_app_type] => 1 [patent_app_number] => 8/022852 [patent_app_country] => US [patent_app_date] => 1993-02-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1996 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/283/05283366.pdf [firstpage_image] =>[orig_patent_app_number] => 022852 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/022852
Method of preparing 3-aminomethyl-3,5,5-trimethyl cyclohexyl amine Feb 24, 1993 Issued
08/015685 CAPSAICIN DERIVATIVES Feb 8, 1993 Abandoned
Array ( [id] => 3068474 [patent_doc_number] => 05352835 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-10-04 [patent_title] => 'Supported catalysts for amination' [patent_app_type] => 1 [patent_app_number] => 8/014583 [patent_app_country] => US [patent_app_date] => 1993-02-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 6790 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 144 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/352/05352835.pdf [firstpage_image] =>[orig_patent_app_number] => 014583 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/014583
Supported catalysts for amination Feb 7, 1993 Issued
Array ( [id] => 3075578 [patent_doc_number] => 05296498 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-03-22 [patent_title] => 'Guanidine compounds' [patent_app_type] => 1 [patent_app_number] => 8/005653 [patent_app_country] => US [patent_app_date] => 1993-01-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3309 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 29 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/296/05296498.pdf [firstpage_image] =>[orig_patent_app_number] => 005653 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/005653
Guanidine compounds Jan 18, 1993 Issued
Array ( [id] => 2899022 [patent_doc_number] => 05245082 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-09-14 [patent_title] => 'Process for the production of di-(4-aminocyclohexyl)-methane containing 15 to 25% by weight of the trans-trans isomer' [patent_app_type] => 1 [patent_app_number] => 8/004382 [patent_app_country] => US [patent_app_date] => 1993-01-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2674 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 154 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/245/05245082.pdf [firstpage_image] =>[orig_patent_app_number] => 004382 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/004382
Process for the production of di-(4-aminocyclohexyl)-methane containing 15 to 25% by weight of the trans-trans isomer Jan 13, 1993 Issued
Array ( [id] => 3483637 [patent_doc_number] => 05406000 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-04-11 [patent_title] => 'Process for the production of 3-aminomethyl-3,5,5-trialkylcyclohexylamine' [patent_app_type] => 1 [patent_app_number] => 8/003343 [patent_app_country] => US [patent_app_date] => 1993-01-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2392 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 88 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/406/05406000.pdf [firstpage_image] =>[orig_patent_app_number] => 003343 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/003343
Process for the production of 3-aminomethyl-3,5,5-trialkylcyclohexylamine Jan 11, 1993 Issued
Array ( [id] => 2979578 [patent_doc_number] => 05256821 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-10-26 [patent_title] => 'Method of synthesis of sulphonylimides' [patent_app_type] => 1 [patent_app_number] => 8/000587 [patent_app_country] => US [patent_app_date] => 1993-01-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5537 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 16 [patent_words_short_claim] => 24 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/256/05256821.pdf [firstpage_image] =>[orig_patent_app_number] => 000587 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/000587
Method of synthesis of sulphonylimides Jan 4, 1993 Issued
Array ( [id] => 3078007 [patent_doc_number] => 05296633 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-03-22 [patent_title] => 'HMTA preparation of methylated tertiary amines' [patent_app_type] => 1 [patent_app_number] => 7/998596 [patent_app_country] => US [patent_app_date] => 1992-12-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2861 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 47 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/296/05296633.pdf [firstpage_image] =>[orig_patent_app_number] => 998596 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/998596
HMTA preparation of methylated tertiary amines Dec 29, 1992 Issued
Array ( [id] => 3021390 [patent_doc_number] => 05302756 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-04-12 [patent_title] => 'Ammonolysis of nylon' [patent_app_type] => 1 [patent_app_number] => 7/997612 [patent_app_country] => US [patent_app_date] => 1992-12-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1848 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/302/05302756.pdf [firstpage_image] =>[orig_patent_app_number] => 997612 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/997612
Ammonolysis of nylon Dec 22, 1992 Issued
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