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] => 2708620 [patent_doc_number] => 04992590 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-02-12 [patent_title] => 'Polyamines by amination of polyamino initiated polyoxyalkylene glycols' [patent_app_type] => 1 [patent_app_number] => 7/415802 [patent_app_country] => US [patent_app_date] => 1989-10-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7348 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/992/04992590.pdf [firstpage_image] =>[orig_patent_app_number] => 415802 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/415802
Polyamines by amination of polyamino initiated polyoxyalkylene glycols Oct 1, 1989 Issued
Array ( [id] => 2564481 [patent_doc_number] => 04945113 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-07-31 [patent_title] => 'herbicidal sulfonamide derivatives' [patent_app_type] => 1 [patent_app_number] => 7/414977 [patent_app_country] => US [patent_app_date] => 1989-09-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2616 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 56 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/945/04945113.pdf [firstpage_image] =>[orig_patent_app_number] => 414977 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/414977
herbicidal sulfonamide derivatives Sep 28, 1989 Issued
07/413833 FLUORINE-CONTAINING MONOMERS, PROCESSES FOR THEIR PREPARATION AND THEIR USE Sep 27, 1989 Abandoned
Array ( [id] => 2581012 [patent_doc_number] => 04973759 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-11-27 [patent_title] => 'Process for the isolation of alkylated aromatic amines' [patent_app_type] => 1 [patent_app_number] => 7/410183 [patent_app_country] => US [patent_app_date] => 1989-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2532 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 128 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/973/04973759.pdf [firstpage_image] =>[orig_patent_app_number] => 410183 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/410183
Process for the isolation of alkylated aromatic amines Sep 19, 1989 Issued
07/406269 2-SUBSTITUTED PARA-AMINOPHENOLS AND THEIR USE FOR DYEING KERATINOUS FIBRES Sep 11, 1989 Abandoned
Array ( [id] => 2599820 [patent_doc_number] => 04922018 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-05-01 [patent_title] => 'Photoconductive imaging members with unsymmetrical squaraine compositions' [patent_app_type] => 1 [patent_app_number] => 7/401598 [patent_app_country] => US [patent_app_date] => 1989-08-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 3 [patent_no_of_words] => 7704 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 75 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/922/04922018.pdf [firstpage_image] =>[orig_patent_app_number] => 401598 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/401598
Photoconductive imaging members with unsymmetrical squaraine compositions Aug 30, 1989 Issued
07/401323 MULTIFUNCTIONAL SYNTHONS AS USED IN THE PREPARATION OF CASCADE POLYMERS OR UNIMOLECULAR MICELLES Aug 30, 1989 Abandoned
Array ( [id] => 2580954 [patent_doc_number] => 04973756 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-11-27 [patent_title] => 'Hydroxylated ene ketones, acetylenic grignards and hydroxylated yne ketones therefrom' [patent_app_type] => 1 [patent_app_number] => 7/395933 [patent_app_country] => US [patent_app_date] => 1989-08-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6874 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 64 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/973/04973756.pdf [firstpage_image] =>[orig_patent_app_number] => 395933 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/395933
Hydroxylated ene ketones, acetylenic grignards and hydroxylated yne ketones therefrom Aug 20, 1989 Issued
Array ( [id] => 2697202 [patent_doc_number] => 04990670 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-02-05 [patent_title] => 'Method of making 1,1\'-oxybis (3-nitro-5-trifluoromethyl)-benzene' [patent_app_type] => 1 [patent_app_number] => 7/394986 [patent_app_country] => US [patent_app_date] => 1989-08-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 976 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 47 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/990/04990670.pdf [firstpage_image] =>[orig_patent_app_number] => 394986 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/394986
Method of making 1,1'-oxybis (3-nitro-5-trifluoromethyl)-benzene Aug 16, 1989 Issued
07/394765 AROMATIC DIOLEFINIC COMPOUNDS, AROMATIC DIETHYL COMPOUNDS AND ELECTROPHOTOGRAPHIC PHOTOCONDUCTORS COMPRISING ON AROMATIC DIETHYL COMPOUND Aug 15, 1989 Abandoned
07/390708 AMINES CATALYSIS USING GROUP VIB METAL-CONTAINING CONDENSATION CATALYSTS Aug 7, 1989 Abandoned
07/385335 ANTIARRHYTHMIC TERTIARY AMINE-ALKENYL-PHENYL-ALKANESULFONAMIDES Jul 24, 1989 Abandoned
Array ( [id] => 2850428 [patent_doc_number] => 05110988 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-05-05 [patent_title] => 'Nonlinear optical material' [patent_app_type] => 1 [patent_app_number] => 7/373131 [patent_app_country] => US [patent_app_date] => 1989-06-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3994 [patent_no_of_claims] => 2 [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/05/110/05110988.pdf [firstpage_image] =>[orig_patent_app_number] => 373131 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/373131
Nonlinear optical material Jun 28, 1989 Issued
07/370316 PROCESS OF PREPARING MIXTURES OF POLYALKYLENEPOLYAMINES AND ALKANOLPOLYAMINES Jun 20, 1989 Abandoned
Array ( [id] => 2671911 [patent_doc_number] => 04954653 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-09-04 [patent_title] => 'Catalyst on the basis of silicon and titanium having high mechanical strength and a process for its preparation' [patent_app_type] => 1 [patent_app_number] => 7/362509 [patent_app_country] => US [patent_app_date] => 1989-06-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 2312 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/954/04954653.pdf [firstpage_image] =>[orig_patent_app_number] => 362509 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/362509
Catalyst on the basis of silicon and titanium having high mechanical strength and a process for its preparation Jun 6, 1989 Issued
07/360203 NOVEL IODINATED NON-IONIC TRIIODOBENZENE COMPOUNDS AND CONTRAST MEDIA CONTAINING THEM May 31, 1989 Abandoned
Array ( [id] => 2765192 [patent_doc_number] => 04994576 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-02-19 [patent_title] => 'Method for reducing aromatic nitro groups' [patent_app_type] => 1 [patent_app_number] => 7/358048 [patent_app_country] => US [patent_app_date] => 1989-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 569 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 67 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/994/04994576.pdf [firstpage_image] =>[orig_patent_app_number] => 358048 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/358048
Method for reducing aromatic nitro groups May 29, 1989 Issued
Array ( [id] => 2629006 [patent_doc_number] => 04967007 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-10-30 [patent_title] => 'Improved process for the preparation of 1-substituted amino-1-substituted thio-2-nitro alkenes' [patent_app_type] => 1 [patent_app_number] => 7/353388 [patent_app_country] => US [patent_app_date] => 1989-05-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1884 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/967/04967007.pdf [firstpage_image] =>[orig_patent_app_number] => 353388 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/353388
Improved process for the preparation of 1-substituted amino-1-substituted thio-2-nitro alkenes May 15, 1989 Issued
Array ( [id] => 2821313 [patent_doc_number] => 05081302 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-01-14 [patent_title] => 'Selective C-alkylation of aniline in the presence of zeolite catalysts to para-aniline' [patent_app_type] => 1 [patent_app_number] => 7/343876 [patent_app_country] => US [patent_app_date] => 1989-04-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 6053 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 73 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/081/05081302.pdf [firstpage_image] =>[orig_patent_app_number] => 343876 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/343876
Selective C-alkylation of aniline in the presence of zeolite catalysts to para-aniline Apr 26, 1989 Issued
Array ( [id] => 2669390 [patent_doc_number] => 05047430 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-09-10 [patent_title] => 'Amide compounds, their production and use' [patent_app_type] => 1 [patent_app_number] => 7/342965 [patent_app_country] => US [patent_app_date] => 1989-04-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10657 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 62 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/047/05047430.pdf [firstpage_image] =>[orig_patent_app_number] => 342965 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/342965
Amide compounds, their production and use Apr 24, 1989 Issued
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