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Kai J. Chang

Examiner (ID: 12149, Phone: (571)270-5448 , Office: P/2468 )

Most Active Art Unit
2468
Art Unit(s)
2468
Total Applications
476
Issued Applications
340
Pending Applications
29
Abandoned Applications
111

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 2752648 [patent_doc_number] => 05071880 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-12-10 [patent_title] => 'Process for producing a bifunctional filter membrane having iminodiacetic acid groups' [patent_app_type] => 1 [patent_app_number] => 7/437659 [patent_app_country] => US [patent_app_date] => 1989-11-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1149 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 60 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/071/05071880.pdf [firstpage_image] =>[orig_patent_app_number] => 437659 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/437659
Process for producing a bifunctional filter membrane having iminodiacetic acid groups Nov 16, 1989 Issued
Array ( [id] => 2786746 [patent_doc_number] => 05130393 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-07-14 [patent_title] => 'Plastic lens' [patent_app_type] => 1 [patent_app_number] => 7/439369 [patent_app_country] => US [patent_app_date] => 1989-11-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2752 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/130/05130393.pdf [firstpage_image] =>[orig_patent_app_number] => 439369 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/439369
Plastic lens Nov 7, 1989 Issued
Array ( [id] => 2884574 [patent_doc_number] => 05109074 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-04-28 [patent_title] => 'Process for preparing an aminomethylphosphonic chelating resin' [patent_app_type] => 1 [patent_app_number] => 7/367529 [patent_app_country] => US [patent_app_date] => 1989-06-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7615 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 58 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/109/05109074.pdf [firstpage_image] =>[orig_patent_app_number] => 367529 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/367529
Process for preparing an aminomethylphosphonic chelating resin Jun 15, 1989 Issued
Array ( [id] => 2804324 [patent_doc_number] => 05124464 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-06-23 [patent_title] => 'Method of preparing metallocene compounds' [patent_app_type] => 1 [patent_app_number] => 7/366605 [patent_app_country] => US [patent_app_date] => 1989-06-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2654 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/124/05124464.pdf [firstpage_image] =>[orig_patent_app_number] => 366605 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/366605
Method of preparing metallocene compounds Jun 14, 1989 Issued
07/305155 PRESSURE-ACTIVATED ADHESIVES Jan 31, 1989 Abandoned
Array ( [id] => 2673532 [patent_doc_number] => 05073617 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-12-17 [patent_title] => 'Barrier film and process for making' [patent_app_type] => 1 [patent_app_number] => 7/292716 [patent_app_country] => US [patent_app_date] => 1989-01-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 6432 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 206 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/073/05073617.pdf [firstpage_image] =>[orig_patent_app_number] => 292716 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/292716
Barrier film and process for making Jan 2, 1989 Issued
07/238847 CATION EXCHANGE POLYIMIDE RESIN AND USE THEREOF Aug 30, 1988 Abandoned
Array ( [id] => 2596687 [patent_doc_number] => 04902077 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-02-20 [patent_title] => 'Hydraulic brake system' [patent_app_type] => 1 [patent_app_number] => 7/624623 [patent_app_country] => US [patent_app_date] => 1984-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3278 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/902/04902077.pdf [firstpage_image] =>[orig_patent_app_number] => 624623 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/624623
Hydraulic brake system Jun 25, 1984 Issued
Array ( [id] => 2596687 [patent_doc_number] => 04902077 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-02-20 [patent_title] => 'Hydraulic brake system' [patent_app_type] => 1 [patent_app_number] => 7/624623 [patent_app_country] => US [patent_app_date] => 1984-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3278 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/902/04902077.pdf [firstpage_image] =>[orig_patent_app_number] => 624623 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/624623
Hydraulic brake system Jun 25, 1984 Issued
Array ( [id] => 2596687 [patent_doc_number] => 04902077 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-02-20 [patent_title] => 'Hydraulic brake system' [patent_app_type] => 1 [patent_app_number] => 7/624623 [patent_app_country] => US [patent_app_date] => 1984-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3278 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/902/04902077.pdf [firstpage_image] =>[orig_patent_app_number] => 624623 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/624623
Hydraulic brake system Jun 25, 1984 Issued
Array ( [id] => 2596687 [patent_doc_number] => 04902077 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-02-20 [patent_title] => 'Hydraulic brake system' [patent_app_type] => 1 [patent_app_number] => 7/624623 [patent_app_country] => US [patent_app_date] => 1984-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3278 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/902/04902077.pdf [firstpage_image] =>[orig_patent_app_number] => 624623 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/624623
Hydraulic brake system Jun 25, 1984 Issued
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