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Yu-wen Chang

Examiner (ID: 3611)

Most Active Art Unit
2413
Art Unit(s)
2413
Total Applications
249
Issued Applications
142
Pending Applications
56
Abandoned Applications
51

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 2430946 [patent_doc_number] => 04739315 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-04-19 [patent_title] => 'X-Y input device' [patent_app_type] => 1 [patent_app_number] => 6/900501 [patent_app_country] => US [patent_app_date] => 1986-08-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 22 [patent_no_of_words] => 4364 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 290 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/739/04739315.pdf [firstpage_image] =>[orig_patent_app_number] => 900501 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/900501
X-Y input device Aug 25, 1986 Issued
06/898173 GRAPHIC DISPLAY APPARATUS WITH COMBINED BIT BUFFER AND CHARACTER GRAPHICS STORE Aug 19, 1986 Abandoned
06/894744 PAPER FEEDING DEVICE Aug 10, 1986 Abandoned
06/894806 VIBRATION DAMPER Aug 7, 1986 Abandoned
Array ( [id] => 2405489 [patent_doc_number] => 04728063 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-03-01 [patent_title] => 'Railway signalling system especially for broken rail detection' [patent_app_type] => 1 [patent_app_number] => 6/894223 [patent_app_country] => US [patent_app_date] => 1986-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 4218 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 270 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/728/04728063.pdf [firstpage_image] =>[orig_patent_app_number] => 894223 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/894223
Railway signalling system especially for broken rail detection Aug 6, 1986 Issued
06/894300 RAILROAD SIGNAL SYSTEM Aug 6, 1986 Abandoned
Array ( [id] => 2398985 [patent_doc_number] => 04769639 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-09-06 [patent_title] => 'Liquid crystal drive circuit for driving a liquid crystal display element having scanning and signal electrodes arranged in matrix form' [patent_app_type] => 1 [patent_app_number] => 6/891523 [patent_app_country] => US [patent_app_date] => 1986-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 2988 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 431 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/769/04769639.pdf [firstpage_image] =>[orig_patent_app_number] => 891523 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/891523
Liquid crystal drive circuit for driving a liquid crystal display element having scanning and signal electrodes arranged in matrix form Jul 30, 1986 Issued
Array ( [id] => 2404986 [patent_doc_number] => 04735384 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-04-05 [patent_title] => 'Apparatus for detecting the distance between a rail vehicle and a remote obstacle on the rail' [patent_app_type] => 1 [patent_app_number] => 6/890513 [patent_app_country] => US [patent_app_date] => 1986-07-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 3089 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 327 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/735/04735384.pdf [firstpage_image] =>[orig_patent_app_number] => 890513 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/890513
Apparatus for detecting the distance between a rail vehicle and a remote obstacle on the rail Jul 29, 1986 Issued
06/890464 ELECTRONIC KEYBOARD FOR ONE-HAND OPERATION Jul 28, 1986 Abandoned
06/889907 MODULAR LARGE-SIZE FORMING LAMP MATRIX SYSTEM Jul 27, 1986 Issued
06/889513 HANDWRITTEN KEYBOARDLESS ENTRY COMPUTER SYSTEM Jul 24, 1986 Abandoned
Array ( [id] => 2421693 [patent_doc_number] => 04728932 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-03-01 [patent_title] => 'Detector for capacitive sensing devices' [patent_app_type] => 1 [patent_app_number] => 6/890216 [patent_app_country] => US [patent_app_date] => 1986-07-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 3985 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 212 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/728/04728932.pdf [firstpage_image] =>[orig_patent_app_number] => 890216 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/890216
Detector for capacitive sensing devices Jul 24, 1986 Issued
06/887784 LAMINATED PIEZOELECTRIC KEYBOARD Jul 20, 1986 Abandoned
Array ( [id] => 2495888 [patent_doc_number] => 04859999 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-08-22 [patent_title] => 'Pattern-boundary image generation system and method' [patent_app_type] => 1 [patent_app_number] => 6/887652 [patent_app_country] => US [patent_app_date] => 1986-07-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 3631 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 127 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/859/04859999.pdf [firstpage_image] =>[orig_patent_app_number] => 887652 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/887652
Pattern-boundary image generation system and method Jul 20, 1986 Issued
Array ( [id] => 2495888 [patent_doc_number] => 04859999 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-08-22 [patent_title] => 'Pattern-boundary image generation system and method' [patent_app_type] => 1 [patent_app_number] => 6/887652 [patent_app_country] => US [patent_app_date] => 1986-07-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 3631 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 127 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/859/04859999.pdf [firstpage_image] =>[orig_patent_app_number] => 887652 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/887652
Pattern-boundary image generation system and method Jul 20, 1986 Issued
06/887784 LAMINATED PIEZOELECTRIC KEYBOARD Jul 20, 1986 Abandoned
Array ( [id] => 2801359 [patent_doc_number] => 05144292 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-09-01 [patent_title] => 'Liquid crystal display system with variable backlighting for data processing machine' [patent_app_type] => 1 [patent_app_number] => 6/886423 [patent_app_country] => US [patent_app_date] => 1986-07-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 1492 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/144/05144292.pdf [firstpage_image] =>[orig_patent_app_number] => 886423 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/886423
Liquid crystal display system with variable backlighting for data processing machine Jul 16, 1986 Issued
06/886759 MALFUNCTION PREVENTIVE ANTI-SKID BRAKE CONTROL SYSTEM FOR AUTOMOTIVE BRAKE SYSTEM Jul 14, 1986 Abandoned
Array ( [id] => 2409406 [patent_doc_number] => 04733854 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-03-29 [patent_title] => 'Fluid sealed mounting' [patent_app_type] => 1 [patent_app_number] => 6/881563 [patent_app_country] => US [patent_app_date] => 1986-07-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 33 [patent_no_of_words] => 9373 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 276 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/733/04733854.pdf [firstpage_image] =>[orig_patent_app_number] => 881563 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/881563
Fluid sealed mounting Jul 2, 1986 Issued
Array ( [id] => 2387929 [patent_doc_number] => 04783648 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-11-08 [patent_title] => 'Display control system for multiwindow' [patent_app_type] => 1 [patent_app_number] => 6/879621 [patent_app_country] => US [patent_app_date] => 1986-06-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 11 [patent_no_of_words] => 4638 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 215 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/783/04783648.pdf [firstpage_image] =>[orig_patent_app_number] => 879621 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/879621
Display control system for multiwindow Jun 26, 1986 Issued
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