Search

Jay C. Chang

Examiner (ID: 17046, Phone: (571)272-6132 , Office: P/2895 )

Most Active Art Unit
2895
Art Unit(s)
2895, 2817
Total Applications
698
Issued Applications
528
Pending Applications
84
Abandoned Applications
100

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 4208967 [patent_doc_number] => 06116146 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-09-12 [patent_title] => 'Radial piston machine' [patent_app_type] => 1 [patent_app_number] => 8/849782 [patent_app_country] => US [patent_app_date] => 1997-08-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 1662 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 171 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/116/06116146.pdf [firstpage_image] =>[orig_patent_app_number] => 849782 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/849782
Radial piston machine Aug 13, 1997 Issued
Array ( [id] => 4068005 [patent_doc_number] => 06016653 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-01-25 [patent_title] => 'After-injection combustion exhaust purification system and method' [patent_app_type] => 1 [patent_app_number] => 8/908028 [patent_app_country] => US [patent_app_date] => 1997-08-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2452 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/016/06016653.pdf [firstpage_image] =>[orig_patent_app_number] => 908028 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/908028
After-injection combustion exhaust purification system and method Aug 13, 1997 Issued
Array ( [id] => 3926543 [patent_doc_number] => 05953906 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-09-21 [patent_title] => 'Exhaust gas purification device for internal combustion engines' [patent_app_type] => 1 [patent_app_number] => 8/875930 [patent_app_country] => US [patent_app_date] => 1997-08-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 2964 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/953/05953906.pdf [firstpage_image] =>[orig_patent_app_number] => 875930 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/875930
Exhaust gas purification device for internal combustion engines Aug 7, 1997 Issued
Array ( [id] => 3745395 [patent_doc_number] => 05771775 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-06-30 [patent_title] => 'Device for guiding a piston' [patent_app_type] => 1 [patent_app_number] => 8/909045 [patent_app_country] => US [patent_app_date] => 1997-08-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 3550 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/771/05771775.pdf [firstpage_image] =>[orig_patent_app_number] => 909045 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/909045
Device for guiding a piston Aug 7, 1997 Issued
Array ( [id] => 4213186 [patent_doc_number] => 06073537 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-06-13 [patent_title] => 'Roller bush for fuel injection pump' [patent_app_type] => 1 [patent_app_number] => 8/908385 [patent_app_country] => US [patent_app_date] => 1997-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 3314 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/073/06073537.pdf [firstpage_image] =>[orig_patent_app_number] => 908385 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/908385
Roller bush for fuel injection pump Aug 6, 1997 Issued
Array ( [id] => 3975217 [patent_doc_number] => 05918530 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-07-06 [patent_title] => 'Hydraulic rotary actuator' [patent_app_type] => 1 [patent_app_number] => 8/849558 [patent_app_country] => US [patent_app_date] => 1997-08-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2671 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 295 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/918/05918530.pdf [firstpage_image] =>[orig_patent_app_number] => 849558 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/849558
Hydraulic rotary actuator Aug 5, 1997 Issued
Array ( [id] => 4028624 [patent_doc_number] => 05930995 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-08-03 [patent_title] => 'Exhaust gas purification device for a compression-ignition combustion engine' [patent_app_type] => 1 [patent_app_number] => 8/906801 [patent_app_country] => US [patent_app_date] => 1997-08-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 10 [patent_no_of_words] => 4321 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 155 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/930/05930995.pdf [firstpage_image] =>[orig_patent_app_number] => 906801 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/906801
Exhaust gas purification device for a compression-ignition combustion engine Aug 5, 1997 Issued
Array ( [id] => 3879107 [patent_doc_number] => 05893267 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-04-13 [patent_title] => 'Catalytic reduction system for oxygen-rich exhaust' [patent_app_type] => 1 [patent_app_number] => 8/906687 [patent_app_country] => US [patent_app_date] => 1997-08-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 8074 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 89 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/893/05893267.pdf [firstpage_image] =>[orig_patent_app_number] => 906687 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/906687
Catalytic reduction system for oxygen-rich exhaust Aug 4, 1997 Issued
Array ( [id] => 3979371 [patent_doc_number] => 05857402 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-01-12 [patent_title] => 'Variable displacement compressor method and apparatus' [patent_app_type] => 1 [patent_app_number] => 8/905579 [patent_app_country] => US [patent_app_date] => 1997-08-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 4102 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 189 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/857/05857402.pdf [firstpage_image] =>[orig_patent_app_number] => 905579 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/905579
Variable displacement compressor method and apparatus Aug 3, 1997 Issued
Array ( [id] => 3975203 [patent_doc_number] => 05918529 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-07-06 [patent_title] => 'Hydrostatic axial piston machine utilizing bridge segments which are radially inward of the piston bores' [patent_app_type] => 1 [patent_app_number] => 8/905252 [patent_app_country] => US [patent_app_date] => 1997-08-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 3663 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 173 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/918/05918529.pdf [firstpage_image] =>[orig_patent_app_number] => 905252 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/905252
Hydrostatic axial piston machine utilizing bridge segments which are radially inward of the piston bores Jul 31, 1997 Issued
Array ( [id] => 4012655 [patent_doc_number] => 05941070 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-08-24 [patent_title] => 'Flexible sealed conduit system' [patent_app_type] => 1 [patent_app_number] => 8/903557 [patent_app_country] => US [patent_app_date] => 1997-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 1395 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 262 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/941/05941070.pdf [firstpage_image] =>[orig_patent_app_number] => 903557 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/903557
Flexible sealed conduit system Jul 30, 1997 Issued
Array ( [id] => 3806585 [patent_doc_number] => 05758565 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-06-02 [patent_title] => 'Diaphragm assembly and method of manufacturing same' [patent_app_type] => 1 [patent_app_number] => 8/902995 [patent_app_country] => US [patent_app_date] => 1997-07-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 27 [patent_no_of_words] => 6134 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 68 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/758/05758565.pdf [firstpage_image] =>[orig_patent_app_number] => 902995 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/902995
Diaphragm assembly and method of manufacturing same Jul 29, 1997 Issued
Array ( [id] => 3964626 [patent_doc_number] => 05983778 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-11-16 [patent_title] => 'Telescopic hydraulic hoist apparatus' [patent_app_type] => 1 [patent_app_number] => 8/901089 [patent_app_country] => US [patent_app_date] => 1997-07-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 1980 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 251 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/983/05983778.pdf [firstpage_image] =>[orig_patent_app_number] => 901089 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/901089
Telescopic hydraulic hoist apparatus Jul 27, 1997 Issued
Array ( [id] => 3929723 [patent_doc_number] => 05934171 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-08-10 [patent_title] => 'Flexible mount for hydraulic/pneumatic cylinder and the like' [patent_app_type] => 1 [patent_app_number] => 8/900203 [patent_app_country] => US [patent_app_date] => 1997-07-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 4756 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 135 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/934/05934171.pdf [firstpage_image] =>[orig_patent_app_number] => 900203 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/900203
Flexible mount for hydraulic/pneumatic cylinder and the like Jul 23, 1997 Issued
Array ( [id] => 3953596 [patent_doc_number] => 05956950 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-09-28 [patent_title] => 'Arrangement for isolating torsional vibration' [patent_app_type] => 1 [patent_app_number] => 8/897413 [patent_app_country] => US [patent_app_date] => 1997-07-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 6 [patent_no_of_words] => 811 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 127 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/956/05956950.pdf [firstpage_image] =>[orig_patent_app_number] => 897413 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/897413
Arrangement for isolating torsional vibration Jul 20, 1997 Issued
Array ( [id] => 3816281 [patent_doc_number] => 05845487 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-12-08 [patent_title] => 'Method and device for operating an internal combustion engine with low nitrogen oxide emissions' [patent_app_type] => 1 [patent_app_number] => 8/897769 [patent_app_country] => US [patent_app_date] => 1997-07-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 3151 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 165 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/845/05845487.pdf [firstpage_image] =>[orig_patent_app_number] => 897769 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/897769
Method and device for operating an internal combustion engine with low nitrogen oxide emissions Jul 20, 1997 Issued
Array ( [id] => 3981550 [patent_doc_number] => 05910097 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-06-08 [patent_title] => 'Internal combustion engine exhaust emission control system with adsorbers for nitrogen oxides' [patent_app_type] => 1 [patent_app_number] => 8/895900 [patent_app_country] => US [patent_app_date] => 1997-07-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 4107 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 179 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/910/05910097.pdf [firstpage_image] =>[orig_patent_app_number] => 895900 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/895900
Internal combustion engine exhaust emission control system with adsorbers for nitrogen oxides Jul 16, 1997 Issued
Array ( [id] => 3738513 [patent_doc_number] => 05842406 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-12-01 [patent_title] => 'Piston for compressors including a restrictor to prevent the piston from rotating' [patent_app_type] => 1 [patent_app_number] => 8/892375 [patent_app_country] => US [patent_app_date] => 1997-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 5090 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 228 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/842/05842406.pdf [firstpage_image] =>[orig_patent_app_number] => 892375 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/892375
Piston for compressors including a restrictor to prevent the piston from rotating Jul 13, 1997 Issued
Array ( [id] => 3722798 [patent_doc_number] => 05752430 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-05-19 [patent_title] => 'High pressure fuel supply pump for engine' [patent_app_type] => 1 [patent_app_number] => 8/892109 [patent_app_country] => US [patent_app_date] => 1997-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 1758 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 124 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/752/05752430.pdf [firstpage_image] =>[orig_patent_app_number] => 892109 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/892109
High pressure fuel supply pump for engine Jul 13, 1997 Issued
Array ( [id] => 3978208 [patent_doc_number] => 05857324 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-01-12 [patent_title] => 'Internal combustion engine exhaust treating apparatus and method' [patent_app_type] => 1 [patent_app_number] => 8/893621 [patent_app_country] => US [patent_app_date] => 1997-07-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 10 [patent_no_of_words] => 5868 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 146 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/857/05857324.pdf [firstpage_image] =>[orig_patent_app_number] => 893621 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/893621
Internal combustion engine exhaust treating apparatus and method Jul 10, 1997 Issued
Menu