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] => 2943347 [patent_doc_number] => 05263441 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-11-23 [patent_title] => 'Hydraulic valve control apparatus for internal combustion engines' [patent_app_type] => 1 [patent_app_number] => 7/730792 [patent_app_country] => US [patent_app_date] => 1991-07-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 8 [patent_no_of_words] => 6629 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 308 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/263/05263441.pdf [firstpage_image] =>[orig_patent_app_number] => 730792 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/730792
Hydraulic valve control apparatus for internal combustion engines Jul 24, 1991 Issued
Array ( [id] => 2780630 [patent_doc_number] => 05138985 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-08-18 [patent_title] => 'Arrangement for changing the valve timing of an internal-combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/735006 [patent_app_country] => US [patent_app_date] => 1991-07-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 3888 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 217 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/138/05138985.pdf [firstpage_image] =>[orig_patent_app_number] => 735006 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/735006
Arrangement for changing the valve timing of an internal-combustion engine Jul 24, 1991 Issued
Array ( [id] => 2788411 [patent_doc_number] => 05156119 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-10-20 [patent_title] => 'Valve timing control apparatus' [patent_app_type] => 1 [patent_app_number] => 7/734137 [patent_app_country] => US [patent_app_date] => 1991-07-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 3016 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 192 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/156/05156119.pdf [firstpage_image] =>[orig_patent_app_number] => 734137 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/734137
Valve timing control apparatus Jul 21, 1991 Issued
Array ( [id] => 2805000 [patent_doc_number] => 05168841 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-12-08 [patent_title] => 'Tappet with ceramic seat plate' [patent_app_type] => 1 [patent_app_number] => 7/732203 [patent_app_country] => US [patent_app_date] => 1991-07-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 4158 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/168/05168841.pdf [firstpage_image] =>[orig_patent_app_number] => 732203 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/732203
Tappet with ceramic seat plate Jul 18, 1991 Issued
Array ( [id] => 2860509 [patent_doc_number] => 05107805 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-04-28 [patent_title] => 'Camshaft with extra cam to increase the magnitude of torque pulsations therein' [patent_app_type] => 1 [patent_app_number] => 7/732065 [patent_app_country] => US [patent_app_date] => 1991-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 14 [patent_no_of_words] => 3213 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 207 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/107/05107805.pdf [firstpage_image] =>[orig_patent_app_number] => 732065 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/732065
Camshaft with extra cam to increase the magnitude of torque pulsations therein Jul 17, 1991 Issued
Array ( [id] => 2954008 [patent_doc_number] => 05193495 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-03-16 [patent_title] => 'Internal combustion engine valve control device' [patent_app_type] => 1 [patent_app_number] => 7/730613 [patent_app_country] => US [patent_app_date] => 1991-07-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 3069 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 97 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/193/05193495.pdf [firstpage_image] =>[orig_patent_app_number] => 730613 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/730613
Internal combustion engine valve control device Jul 15, 1991 Issued
Array ( [id] => 2785741 [patent_doc_number] => 05144920 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-09-08 [patent_title] => 'Automatic timing governor between crankshaft and camshafts, operating by means of actuators on the shaft connecting chain' [patent_app_type] => 1 [patent_app_number] => 7/720813 [patent_app_country] => US [patent_app_date] => 1991-07-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 1730 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 146 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/144/05144920.pdf [firstpage_image] =>[orig_patent_app_number] => 720813 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/720813
Automatic timing governor between crankshaft and camshafts, operating by means of actuators on the shaft connecting chain Jul 10, 1991 Issued
Array ( [id] => 2768131 [patent_doc_number] => 05099806 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-03-31 [patent_title] => 'Valve system for automobile engine' [patent_app_type] => 1 [patent_app_number] => 7/725606 [patent_app_country] => US [patent_app_date] => 1991-07-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 29 [patent_no_of_words] => 5976 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 177 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/099/05099806.pdf [firstpage_image] =>[orig_patent_app_number] => 725606 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/725606
Valve system for automobile engine Jul 2, 1991 Issued
Array ( [id] => 2841001 [patent_doc_number] => 05165369 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-11-24 [patent_title] => 'Hydraulic valve control apparatus for a multicylinder internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/688589 [patent_app_country] => US [patent_app_date] => 1991-06-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 4713 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 190 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/165/05165369.pdf [firstpage_image] =>[orig_patent_app_number] => 688589 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/688589
Hydraulic valve control apparatus for a multicylinder internal combustion engine Jun 27, 1991 Issued
Array ( [id] => 2931736 [patent_doc_number] => 05179918 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-01-19 [patent_title] => 'Timing-range gear' [patent_app_type] => 1 [patent_app_number] => 7/721400 [patent_app_country] => US [patent_app_date] => 1991-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 11 [patent_no_of_words] => 3588 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 220 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/179/05179918.pdf [firstpage_image] =>[orig_patent_app_number] => 721400 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/721400
Timing-range gear Jun 25, 1991 Issued
Array ( [id] => 2960004 [patent_doc_number] => 05203291 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-04-20 [patent_title] => 'Valve timing control system for internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/721131 [patent_app_country] => US [patent_app_date] => 1991-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 14 [patent_no_of_words] => 7576 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 173 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/203/05203291.pdf [firstpage_image] =>[orig_patent_app_number] => 721131 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/721131
Valve timing control system for internal combustion engine Jun 25, 1991 Issued
Array ( [id] => 2847644 [patent_doc_number] => 05095860 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-03-17 [patent_title] => 'Engine valve cover apparatus' [patent_app_type] => 1 [patent_app_number] => 7/719621 [patent_app_country] => US [patent_app_date] => 1991-06-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 7 [patent_no_of_words] => 2331 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 223 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/095/05095860.pdf [firstpage_image] =>[orig_patent_app_number] => 719621 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/719621
Engine valve cover apparatus Jun 23, 1991 Issued
07/720115 VARIABLE ENGINE VALVE CONTROL SYSTEM Jun 23, 1991 Abandoned
Array ( [id] => 2912406 [patent_doc_number] => 05231960 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-08-03 [patent_title] => 'Method and appparatus for varying intake and exhaust valve opening and closing in a reciprocating piston engine' [patent_app_type] => 1 [patent_app_number] => 7/718776 [patent_app_country] => US [patent_app_date] => 1991-06-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 3 [patent_no_of_words] => 3397 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/231/05231960.pdf [firstpage_image] =>[orig_patent_app_number] => 718776 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/718776
Method and appparatus for varying intake and exhaust valve opening and closing in a reciprocating piston engine Jun 20, 1991 Issued
Array ( [id] => 2767633 [patent_doc_number] => 05154143 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-10-13 [patent_title] => 'Electrohydraulic valve control device for internal combustion engines' [patent_app_type] => 1 [patent_app_number] => 7/690882 [patent_app_country] => US [patent_app_date] => 1991-06-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 3550 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 264 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/154/05154143.pdf [firstpage_image] =>[orig_patent_app_number] => 690882 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/690882
Electrohydraulic valve control device for internal combustion engines Jun 17, 1991 Issued
Array ( [id] => 2847607 [patent_doc_number] => 05095858 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-03-17 [patent_title] => 'Timing system, particularly for an internal combustion engine with a number of valves per cylinder' [patent_app_type] => 1 [patent_app_number] => 7/717414 [patent_app_country] => US [patent_app_date] => 1991-06-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 9 [patent_no_of_words] => 2528 [patent_no_of_claims] => 8 [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/05/095/05095858.pdf [firstpage_image] =>[orig_patent_app_number] => 717414 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/717414
Timing system, particularly for an internal combustion engine with a number of valves per cylinder Jun 16, 1991 Issued
Array ( [id] => 2806080 [patent_doc_number] => 05167206 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-12-01 [patent_title] => 'Continuously variable valve timing control system' [patent_app_type] => 1 [patent_app_number] => 7/707086 [patent_app_country] => US [patent_app_date] => 1991-05-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1848 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/167/05167206.pdf [firstpage_image] =>[orig_patent_app_number] => 707086 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/707086
Continuously variable valve timing control system May 28, 1991 Issued
Array ( [id] => 2860587 [patent_doc_number] => 05107809 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-04-28 [patent_title] => 'Engine block and bearing assembly' [patent_app_type] => 1 [patent_app_number] => 7/706373 [patent_app_country] => US [patent_app_date] => 1991-05-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 4 [patent_no_of_words] => 1855 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 89 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/107/05107809.pdf [firstpage_image] =>[orig_patent_app_number] => 706373 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/706373
Engine block and bearing assembly May 27, 1991 Issued
Array ( [id] => 2783882 [patent_doc_number] => 05113811 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-05-19 [patent_title] => 'Hydraulic valve control device for internal combustion engines' [patent_app_type] => 1 [patent_app_number] => 7/700126 [patent_app_country] => US [patent_app_date] => 1991-05-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 3713 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 209 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/113/05113811.pdf [firstpage_image] =>[orig_patent_app_number] => 700126 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/700126
Hydraulic valve control device for internal combustion engines May 27, 1991 Issued
Array ( [id] => 2860442 [patent_doc_number] => 05107802 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-04-28 [patent_title] => 'Valve driving mechanism for internal combustion engines' [patent_app_type] => 1 [patent_app_number] => 7/705274 [patent_app_country] => US [patent_app_date] => 1991-05-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 21 [patent_figures_cnt] => 28 [patent_no_of_words] => 6859 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/107/05107802.pdf [firstpage_image] =>[orig_patent_app_number] => 705274 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/705274
Valve driving mechanism for internal combustion engines May 23, 1991 Issued
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