Search

Weilun Lo

Supervisory Patent Examiner (ID: 18821, Phone: (571)272-4847 , Office: P/2179 )

Most Active Art Unit
3402
Art Unit(s)
3748, 3747, 2179, 3402, 3761, 3723, 2899
Total Applications
2327
Issued Applications
2049
Pending Applications
47
Abandoned Applications
231

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 2654027 [patent_doc_number] => 04998515 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-03-12 [patent_title] => 'Internal combustion engine timing chain cover' [patent_app_type] => 1 [patent_app_number] => 7/511718 [patent_app_country] => US [patent_app_date] => 1990-04-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 7 [patent_no_of_words] => 2894 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 256 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/998/04998515.pdf [firstpage_image] =>[orig_patent_app_number] => 511718 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/511718
Internal combustion engine timing chain cover Apr 19, 1990 Issued
Array ( [id] => 2651127 [patent_doc_number] => 05046461 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-09-10 [patent_title] => 'Valve control system for internal combustion engines' [patent_app_type] => 1 [patent_app_number] => 7/511051 [patent_app_country] => US [patent_app_date] => 1990-04-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 10 [patent_no_of_words] => 8495 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 54 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/046/05046461.pdf [firstpage_image] =>[orig_patent_app_number] => 511051 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/511051
Valve control system for internal combustion engines Apr 18, 1990 Issued
Array ( [id] => 2738108 [patent_doc_number] => 05042436 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-08-27 [patent_title] => 'Valve control system for internal combustion engines' [patent_app_type] => 1 [patent_app_number] => 7/511081 [patent_app_country] => US [patent_app_date] => 1990-04-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 14 [patent_no_of_words] => 11520 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 116 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/042/05042436.pdf [firstpage_image] =>[orig_patent_app_number] => 511081 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/511081
Valve control system for internal combustion engines Apr 18, 1990 Issued
Array ( [id] => 2615902 [patent_doc_number] => 04976227 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-12-11 [patent_title] => 'Internal combustion engine intake and exhaust valve control apparatus' [patent_app_type] => 1 [patent_app_number] => 7/509882 [patent_app_country] => US [patent_app_date] => 1990-04-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 3894 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 174 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/976/04976227.pdf [firstpage_image] =>[orig_patent_app_number] => 509882 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/509882
Internal combustion engine intake and exhaust valve control apparatus Apr 15, 1990 Issued
Array ( [id] => 2678021 [patent_doc_number] => 04995352 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-02-26 [patent_title] => 'Dynamic valve mechanism of internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/509335 [patent_app_country] => US [patent_app_date] => 1990-04-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 1946 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 194 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/995/04995352.pdf [firstpage_image] =>[orig_patent_app_number] => 509335 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/509335
Dynamic valve mechanism of internal combustion engine Apr 12, 1990 Issued
Array ( [id] => 2638549 [patent_doc_number] => 04971000 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-11-20 [patent_title] => 'Camshaft driving arrangement for double overhead camshaft engine' [patent_app_type] => 1 [patent_app_number] => 7/507470 [patent_app_country] => US [patent_app_date] => 1990-04-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 1908 [patent_no_of_claims] => 1 [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/04/971/04971000.pdf [firstpage_image] =>[orig_patent_app_number] => 507470 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/507470
Camshaft driving arrangement for double overhead camshaft engine Apr 10, 1990 Issued
Array ( [id] => 2678040 [patent_doc_number] => 04995353 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-02-26 [patent_title] => 'Valve train with lash/compliance compensation' [patent_app_type] => 1 [patent_app_number] => 7/508072 [patent_app_country] => US [patent_app_date] => 1990-04-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 8 [patent_no_of_words] => 2503 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 216 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/995/04995353.pdf [firstpage_image] =>[orig_patent_app_number] => 508072 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/508072
Valve train with lash/compliance compensation Apr 10, 1990 Issued
Array ( [id] => 2797409 [patent_doc_number] => 05080055 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-01-14 [patent_title] => 'Variable valve timing arrangement for internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/506987 [patent_app_country] => US [patent_app_date] => 1990-04-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 14 [patent_no_of_words] => 2774 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 225 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/080/05080055.pdf [firstpage_image] =>[orig_patent_app_number] => 506987 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/506987
Variable valve timing arrangement for internal combustion engine Apr 9, 1990 Issued
Array ( [id] => 2643202 [patent_doc_number] => 04977867 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-12-18 [patent_title] => 'Self-adjusting variable duration hydraulic lifter' [patent_app_type] => 1 [patent_app_number] => 7/502768 [patent_app_country] => US [patent_app_date] => 1990-04-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 10 [patent_no_of_words] => 2690 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 191 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/977/04977867.pdf [firstpage_image] =>[orig_patent_app_number] => 502768 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/502768
Self-adjusting variable duration hydraulic lifter Apr 1, 1990 Issued
Array ( [id] => 2714532 [patent_doc_number] => 05031582 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-07-16 [patent_title] => 'Internal combustion engine providing scavenging with combustion chamber volume control' [patent_app_type] => 1 [patent_app_number] => 7/499904 [patent_app_country] => US [patent_app_date] => 1990-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 2589 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 158 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/031/05031582.pdf [firstpage_image] =>[orig_patent_app_number] => 499904 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/499904
Internal combustion engine providing scavenging with combustion chamber volume control Mar 26, 1990 Issued
Array ( [id] => 2731235 [patent_doc_number] => 05020487 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-06-04 [patent_title] => 'Internal combustion engine with load-responsive valve control for combustion chamber scavenging' [patent_app_type] => 1 [patent_app_number] => 7/499890 [patent_app_country] => US [patent_app_date] => 1990-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 9 [patent_no_of_words] => 2546 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 169 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/020/05020487.pdf [firstpage_image] =>[orig_patent_app_number] => 499890 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/499890
Internal combustion engine with load-responsive valve control for combustion chamber scavenging Mar 26, 1990 Issued
Array ( [id] => 2754097 [patent_doc_number] => 04984541 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-01-15 [patent_title] => 'Valve stepping drive apparatus' [patent_app_type] => 1 [patent_app_number] => 7/498640 [patent_app_country] => US [patent_app_date] => 1990-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 7 [patent_no_of_words] => 2637 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 155 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/984/04984541.pdf [firstpage_image] =>[orig_patent_app_number] => 498640 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/498640
Valve stepping drive apparatus Mar 25, 1990 Issued
Array ( [id] => 2580408 [patent_doc_number] => 04974560 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-12-04 [patent_title] => 'Mechanism for varying valve duration in an internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/496651 [patent_app_country] => US [patent_app_date] => 1990-03-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 13 [patent_no_of_words] => 4949 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 201 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/974/04974560.pdf [firstpage_image] =>[orig_patent_app_number] => 496651 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/496651
Mechanism for varying valve duration in an internal combustion engine Mar 20, 1990 Issued
Array ( [id] => 2689368 [patent_doc_number] => 05067450 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-11-26 [patent_title] => 'Variable valve timing system having rotational vibration damping' [patent_app_type] => 1 [patent_app_number] => 7/491208 [patent_app_country] => US [patent_app_date] => 1990-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3903 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/067/05067450.pdf [firstpage_image] =>[orig_patent_app_number] => 491208 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/491208
Variable valve timing system having rotational vibration damping Mar 8, 1990 Issued
Array ( [id] => 2688712 [patent_doc_number] => 05012774 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-05-07 [patent_title] => 'Device for the relative angular adjustment of a camshaft' [patent_app_type] => 1 [patent_app_number] => 7/486933 [patent_app_country] => US [patent_app_date] => 1990-03-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 2803 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 175 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/012/05012774.pdf [firstpage_image] =>[orig_patent_app_number] => 486933 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/486933
Device for the relative angular adjustment of a camshaft Feb 28, 1990 Issued
Array ( [id] => 2665632 [patent_doc_number] => 05003939 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-04-02 [patent_title] => 'Valve duration and lift variator for internal combustion engines' [patent_app_type] => 1 [patent_app_number] => 7/486599 [patent_app_country] => US [patent_app_date] => 1990-02-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 12 [patent_no_of_words] => 3880 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 351 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/003/05003939.pdf [firstpage_image] =>[orig_patent_app_number] => 486599 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/486599
Valve duration and lift variator for internal combustion engines Feb 25, 1990 Issued
Array ( [id] => 2690194 [patent_doc_number] => 05040499 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-08-20 [patent_title] => 'Intake- and/or exhaust-valve timing control system for internal combustion engines' [patent_app_type] => 1 [patent_app_number] => 7/483633 [patent_app_country] => US [patent_app_date] => 1990-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 4711 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 214 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/040/05040499.pdf [firstpage_image] =>[orig_patent_app_number] => 483633 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/483633
Intake- and/or exhaust-valve timing control system for internal combustion engines Feb 22, 1990 Issued
Array ( [id] => 2685934 [patent_doc_number] => 05019119 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-05-28 [patent_title] => 'Electro-rheological fuel injector' [patent_app_type] => 1 [patent_app_number] => 7/481308 [patent_app_country] => US [patent_app_date] => 1990-02-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 22 [patent_no_of_words] => 6824 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 126 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/019/05019119.pdf [firstpage_image] =>[orig_patent_app_number] => 481308 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/481308
Electro-rheological fuel injector Feb 15, 1990 Issued
Array ( [id] => 2651470 [patent_doc_number] => 05033421 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-07-23 [patent_title] => 'V type engine' [patent_app_type] => 1 [patent_app_number] => 7/479984 [patent_app_country] => US [patent_app_date] => 1990-02-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 2547 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 196 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/033/05033421.pdf [firstpage_image] =>[orig_patent_app_number] => 479984 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/479984
V type engine Feb 13, 1990 Issued
Array ( [id] => 2667139 [patent_doc_number] => 05048474 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-09-17 [patent_title] => 'Valve train for automotive engine' [patent_app_type] => 1 [patent_app_number] => 7/479621 [patent_app_country] => US [patent_app_date] => 1990-02-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 25 [patent_no_of_words] => 10406 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 101 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/048/05048474.pdf [firstpage_image] =>[orig_patent_app_number] => 479621 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/479621
Valve train for automotive engine Feb 12, 1990 Issued
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