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] => 2762455 [patent_doc_number] => 05150671 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-09-29 [patent_title] => 'Intake- and/or exhaust-valve timing control system for internal combustion engines' [patent_app_type] => 1 [patent_app_number] => 7/784765 [patent_app_country] => US [patent_app_date] => 1991-10-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 4726 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 177 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/150/05150671.pdf [firstpage_image] =>[orig_patent_app_number] => 784765 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/784765
Intake- and/or exhaust-valve timing control system for internal combustion engines Oct 29, 1991 Issued
Array ( [id] => 2864331 [patent_doc_number] => 05184580 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-02-09 [patent_title] => 'Timing system for an internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/784180 [patent_app_country] => US [patent_app_date] => 1991-10-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2238 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 293 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/184/05184580.pdf [firstpage_image] =>[orig_patent_app_number] => 784180 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/784180
Timing system for an internal combustion engine Oct 29, 1991 Issued
Array ( [id] => 2851794 [patent_doc_number] => 05161493 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-11-10 [patent_title] => 'Phase change mechanism' [patent_app_type] => 1 [patent_app_number] => 7/775947 [patent_app_country] => US [patent_app_date] => 1991-10-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 8 [patent_no_of_words] => 4180 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 270 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/161/05161493.pdf [firstpage_image] =>[orig_patent_app_number] => 775947 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/775947
Phase change mechanism Oct 24, 1991 Issued
Array ( [id] => 2783836 [patent_doc_number] => 05123384 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-06-23 [patent_title] => 'Pedestal-mounted rocker arm with bushing' [patent_app_type] => 1 [patent_app_number] => 7/780043 [patent_app_country] => US [patent_app_date] => 1991-10-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 1748 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 98 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/123/05123384.pdf [firstpage_image] =>[orig_patent_app_number] => 780043 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/780043
Pedestal-mounted rocker arm with bushing Oct 20, 1991 Issued
Array ( [id] => 2849746 [patent_doc_number] => 05152263 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-10-06 [patent_title] => 'Bearing and retention apparatus for a camshaft phase change device' [patent_app_type] => 1 [patent_app_number] => 7/775670 [patent_app_country] => US [patent_app_date] => 1991-10-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2166 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 53 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/152/05152263.pdf [firstpage_image] =>[orig_patent_app_number] => 775670 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/775670
Bearing and retention apparatus for a camshaft phase change device Oct 10, 1991 Issued
Array ( [id] => 2914823 [patent_doc_number] => 05195472 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-03-23 [patent_title] => 'Cylinder head' [patent_app_type] => 1 [patent_app_number] => 7/773339 [patent_app_country] => US [patent_app_date] => 1991-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 2100 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 379 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/195/05195472.pdf [firstpage_image] =>[orig_patent_app_number] => 773339 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/773339
Cylinder head Oct 7, 1991 Issued
Array ( [id] => 2824798 [patent_doc_number] => 05159905 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-11-03 [patent_title] => 'Variable cam engine' [patent_app_type] => 1 [patent_app_number] => 7/767335 [patent_app_country] => US [patent_app_date] => 1991-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 9 [patent_no_of_words] => 3415 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 176 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/159/05159905.pdf [firstpage_image] =>[orig_patent_app_number] => 767335 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/767335
Variable cam engine Sep 29, 1991 Issued
Array ( [id] => 2833192 [patent_doc_number] => 05125373 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-06-30 [patent_title] => 'Oil passage structure for rocker-arm shaft for internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/765124 [patent_app_country] => US [patent_app_date] => 1991-09-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 6 [patent_no_of_words] => 2099 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 65 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/125/05125373.pdf [firstpage_image] =>[orig_patent_app_number] => 765124 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/765124
Oil passage structure for rocker-arm shaft for internal combustion engine Sep 24, 1991 Issued
Array ( [id] => 2959962 [patent_doc_number] => 05203289 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-04-20 [patent_title] => 'Variable timing mechanism' [patent_app_type] => 1 [patent_app_number] => 7/763908 [patent_app_country] => US [patent_app_date] => 1991-09-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 31 [patent_no_of_words] => 4539 [patent_no_of_claims] => 35 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 192 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/203/05203289.pdf [firstpage_image] =>[orig_patent_app_number] => 763908 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/763908
Variable timing mechanism Sep 22, 1991 Issued
Array ( [id] => 2807891 [patent_doc_number] => 05172659 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-12-22 [patent_title] => 'Differential pressure control system for variable camshaft timing system' [patent_app_type] => 1 [patent_app_number] => 7/763514 [patent_app_country] => US [patent_app_date] => 1991-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 21 [patent_no_of_words] => 6147 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 532 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/172/05172659.pdf [firstpage_image] =>[orig_patent_app_number] => 763514 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/763514
Differential pressure control system for variable camshaft timing system Sep 19, 1991 Issued
Array ( [id] => 2907989 [patent_doc_number] => 05186128 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-02-16 [patent_title] => 'Valve operating apparatus' [patent_app_type] => 1 [patent_app_number] => 7/762021 [patent_app_country] => US [patent_app_date] => 1991-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 46 [patent_no_of_words] => 12634 [patent_no_of_claims] => 68 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/186/05186128.pdf [firstpage_image] =>[orig_patent_app_number] => 762021 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/762021
Valve operating apparatus Sep 17, 1991 Issued
Array ( [id] => 2767478 [patent_doc_number] => 05129371 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-07-14 [patent_title] => 'Cam cover oil separator for crankcase ventilation' [patent_app_type] => 1 [patent_app_number] => 7/754511 [patent_app_country] => US [patent_app_date] => 1991-09-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 2833 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 199 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/129/05129371.pdf [firstpage_image] =>[orig_patent_app_number] => 754511 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/754511
Cam cover oil separator for crankcase ventilation Sep 2, 1991 Issued
Array ( [id] => 2974031 [patent_doc_number] => 05365894 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-11-22 [patent_title] => 'Valve actuation device' [patent_app_type] => 1 [patent_app_number] => 7/980797 [patent_app_country] => US [patent_app_date] => 1991-09-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 2295 [patent_no_of_claims] => 5 [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/05/365/05365894.pdf [firstpage_image] =>[orig_patent_app_number] => 980797 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/980797
Valve actuation device Sep 2, 1991 Issued
Array ( [id] => 2767702 [patent_doc_number] => 05154146 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-10-13 [patent_title] => 'Composite valve-train pushrod' [patent_app_type] => 1 [patent_app_number] => 7/753130 [patent_app_country] => US [patent_app_date] => 1991-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 4 [patent_no_of_words] => 2639 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 164 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/154/05154146.pdf [firstpage_image] =>[orig_patent_app_number] => 753130 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/753130
Composite valve-train pushrod Aug 29, 1991 Issued
Array ( [id] => 2898066 [patent_doc_number] => 05178105 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-01-12 [patent_title] => 'Valve gear for internal combustion engines' [patent_app_type] => 1 [patent_app_number] => 7/748624 [patent_app_country] => US [patent_app_date] => 1991-08-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 38 [patent_no_of_words] => 5629 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 20 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/178/05178105.pdf [firstpage_image] =>[orig_patent_app_number] => 748624 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/748624
Valve gear for internal combustion engines Aug 21, 1991 Issued
Array ( [id] => 2860528 [patent_doc_number] => 05107806 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-04-28 [patent_title] => 'Hydraulic valve-clearance compensating element for internal combustion engines' [patent_app_type] => 1 [patent_app_number] => 7/748272 [patent_app_country] => US [patent_app_date] => 1991-08-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1955 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 121 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/107/05107806.pdf [firstpage_image] =>[orig_patent_app_number] => 748272 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/748272
Hydraulic valve-clearance compensating element for internal combustion engines Aug 20, 1991 Issued
Array ( [id] => 2768152 [patent_doc_number] => 05099807 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-03-31 [patent_title] => 'Preloaded axle stake for roller follower' [patent_app_type] => 1 [patent_app_number] => 7/744187 [patent_app_country] => US [patent_app_date] => 1991-08-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 4 [patent_no_of_words] => 1368 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 28 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/099/05099807.pdf [firstpage_image] =>[orig_patent_app_number] => 744187 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/744187
Preloaded axle stake for roller follower Aug 13, 1991 Issued
Array ( [id] => 2832669 [patent_doc_number] => 05088455 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-02-18 [patent_title] => 'Roller valve lifter anti-rotation guide' [patent_app_type] => 1 [patent_app_number] => 7/743901 [patent_app_country] => US [patent_app_date] => 1991-08-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 15 [patent_no_of_words] => 3756 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 64 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/088/05088455.pdf [firstpage_image] =>[orig_patent_app_number] => 743901 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/743901
Roller valve lifter anti-rotation guide Aug 11, 1991 Issued
Array ( [id] => 2859797 [patent_doc_number] => 05117787 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-06-02 [patent_title] => 'Self-adjusting hydraulic valve tappet' [patent_app_type] => 1 [patent_app_number] => 7/741644 [patent_app_country] => US [patent_app_date] => 1991-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 1892 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 231 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/117/05117787.pdf [firstpage_image] =>[orig_patent_app_number] => 741644 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/741644
Self-adjusting hydraulic valve tappet Aug 6, 1991 Issued
Array ( [id] => 2821398 [patent_doc_number] => 05170756 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-12-15 [patent_title] => 'Arrangement for changing the relative rotating position of shafts in an internal-combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/735005 [patent_app_country] => US [patent_app_date] => 1991-07-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 10 [patent_no_of_words] => 4276 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 182 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/170/05170756.pdf [firstpage_image] =>[orig_patent_app_number] => 735005 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/735005
Arrangement for changing the relative rotating position of shafts in an internal-combustion engine Jul 24, 1991 Issued
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