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] => 2914396 [patent_doc_number] => 05188068 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-02-23 [patent_title] => 'Roller tappet' [patent_app_type] => 1 [patent_app_number] => 7/879722 [patent_app_country] => US [patent_app_date] => 1992-05-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 10 [patent_no_of_words] => 1866 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/188/05188068.pdf [firstpage_image] =>[orig_patent_app_number] => 879722 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/879722
Roller tappet May 5, 1992 Issued
Array ( [id] => 2918620 [patent_doc_number] => 05259345 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-11-09 [patent_title] => 'Pneumatically powered actuator with hydraulic latching' [patent_app_type] => 1 [patent_app_number] => 7/878644 [patent_app_country] => US [patent_app_date] => 1992-05-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2587 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 110 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/259/05259345.pdf [firstpage_image] =>[orig_patent_app_number] => 878644 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/878644
Pneumatically powered actuator with hydraulic latching May 4, 1992 Issued
07/877623 LOW MASS DIRECT ACTING HYDRAULIC VALVE LIFTER Apr 30, 1992 Abandoned
Array ( [id] => 2915958 [patent_doc_number] => 05228417 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-07-20 [patent_title] => 'Valve timing control system of internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/875263 [patent_app_country] => US [patent_app_date] => 1992-04-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 4741 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 190 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/228/05228417.pdf [firstpage_image] =>[orig_patent_app_number] => 875263 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/875263
Valve timing control system of internal combustion engine Apr 27, 1992 Issued
Array ( [id] => 2880353 [patent_doc_number] => 05183015 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-02-02 [patent_title] => 'Valve operating apparatus' [patent_app_type] => 1 [patent_app_number] => 7/873362 [patent_app_country] => US [patent_app_date] => 1992-04-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 8 [patent_no_of_words] => 2886 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/183/05183015.pdf [firstpage_image] =>[orig_patent_app_number] => 873362 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/873362
Valve operating apparatus Apr 23, 1992 Issued
Array ( [id] => 2873418 [patent_doc_number] => 05209194 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-05-11 [patent_title] => 'Variable valve timing apparatus' [patent_app_type] => 1 [patent_app_number] => 7/872392 [patent_app_country] => US [patent_app_date] => 1992-04-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 10 [patent_no_of_words] => 7493 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 265 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/209/05209194.pdf [firstpage_image] =>[orig_patent_app_number] => 872392 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/872392
Variable valve timing apparatus Apr 22, 1992 Issued
Array ( [id] => 2764592 [patent_doc_number] => 05163391 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-11-17 [patent_title] => 'Wear resistant cast iron rocker arm and method of making same' [patent_app_type] => 1 [patent_app_number] => 7/871480 [patent_app_country] => US [patent_app_date] => 1992-04-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 10 [patent_no_of_words] => 4692 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 54 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/163/05163391.pdf [firstpage_image] =>[orig_patent_app_number] => 871480 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/871480
Wear resistant cast iron rocker arm and method of making same Apr 20, 1992 Issued
Array ( [id] => 2958718 [patent_doc_number] => 05251587 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-10-12 [patent_title] => 'Valve lifter for engine' [patent_app_type] => 1 [patent_app_number] => 7/870598 [patent_app_country] => US [patent_app_date] => 1992-04-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 23 [patent_no_of_words] => 4586 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 134 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/251/05251587.pdf [firstpage_image] =>[orig_patent_app_number] => 870598 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/870598
Valve lifter for engine Apr 16, 1992 Issued
Array ( [id] => 2976312 [patent_doc_number] => 05361735 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-11-08 [patent_title] => 'Belt driven variable camshaft timing system' [patent_app_type] => 1 [patent_app_number] => 7/870437 [patent_app_country] => US [patent_app_date] => 1992-04-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 16 [patent_no_of_words] => 5995 [patent_no_of_claims] => 19 [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/05/361/05361735.pdf [firstpage_image] =>[orig_patent_app_number] => 870437 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/870437
Belt driven variable camshaft timing system Apr 15, 1992 Issued
Array ( [id] => 2915976 [patent_doc_number] => 05228418 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-07-20 [patent_title] => 'Tappet for a valve in an internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/868613 [patent_app_country] => US [patent_app_date] => 1992-04-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 7 [patent_no_of_words] => 2245 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 19 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/228/05228418.pdf [firstpage_image] =>[orig_patent_app_number] => 868613 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/868613
Tappet for a valve in an internal combustion engine Apr 13, 1992 Issued
Array ( [id] => 2858618 [patent_doc_number] => 05158048 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-10-27 [patent_title] => 'Lost motion actuator' [patent_app_type] => 1 [patent_app_number] => 7/862170 [patent_app_country] => US [patent_app_date] => 1992-04-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 11 [patent_no_of_words] => 3437 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 306 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/158/05158048.pdf [firstpage_image] =>[orig_patent_app_number] => 862170 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/862170
Lost motion actuator Apr 1, 1992 Issued
Array ( [id] => 2880371 [patent_doc_number] => 05183016 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-02-02 [patent_title] => 'Hydraulic valve clearance compensator' [patent_app_type] => 1 [patent_app_number] => 7/861745 [patent_app_country] => US [patent_app_date] => 1992-04-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2109 [patent_no_of_claims] => 12 [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/05/183/05183016.pdf [firstpage_image] =>[orig_patent_app_number] => 861745 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/861745
Hydraulic valve clearance compensator Mar 31, 1992 Issued
Array ( [id] => 2888261 [patent_doc_number] => 05215048 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-06-01 [patent_title] => 'Camshaft for multi-valve internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/852155 [patent_app_country] => US [patent_app_date] => 1992-03-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 10 [patent_no_of_words] => 1599 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/215/05215048.pdf [firstpage_image] =>[orig_patent_app_number] => 852155 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/852155
Camshaft for multi-valve internal combustion engine Mar 29, 1992 Issued
Array ( [id] => 2922438 [patent_doc_number] => 05222465 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-06-29 [patent_title] => 'Valve timing control system for engine' [patent_app_type] => 1 [patent_app_number] => 7/859019 [patent_app_country] => US [patent_app_date] => 1992-03-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 5055 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 300 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/222/05222465.pdf [firstpage_image] =>[orig_patent_app_number] => 859019 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/859019
Valve timing control system for engine Mar 29, 1992 Issued
Array ( [id] => 2764556 [patent_doc_number] => 05163389 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-11-17 [patent_title] => 'Hydraulic valve lifter having function to stop valve drive' [patent_app_type] => 1 [patent_app_number] => 7/858497 [patent_app_country] => US [patent_app_date] => 1992-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1509 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 160 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/163/05163389.pdf [firstpage_image] =>[orig_patent_app_number] => 858497 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/858497
Hydraulic valve lifter having function to stop valve drive Mar 26, 1992 Issued
Array ( [id] => 2958700 [patent_doc_number] => 05251586 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-10-12 [patent_title] => 'Valve mechanism for an internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/858674 [patent_app_country] => US [patent_app_date] => 1992-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 9 [patent_no_of_words] => 3152 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 157 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/251/05251586.pdf [firstpage_image] =>[orig_patent_app_number] => 858674 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/858674
Valve mechanism for an internal combustion engine Mar 26, 1992 Issued
Array ( [id] => 2804981 [patent_doc_number] => 05168840 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-12-08 [patent_title] => 'Temperature compensated damping mechanism for hydraulic engine valve actuator' [patent_app_type] => 1 [patent_app_number] => 7/857851 [patent_app_country] => US [patent_app_date] => 1992-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 3 [patent_no_of_words] => 2476 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 30 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/168/05168840.pdf [firstpage_image] =>[orig_patent_app_number] => 857851 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/857851
Temperature compensated damping mechanism for hydraulic engine valve actuator Mar 25, 1992 Issued
Array ( [id] => 2807929 [patent_doc_number] => 05172661 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-12-22 [patent_title] => 'Variable cam phasing device' [patent_app_type] => 1 [patent_app_number] => 7/854152 [patent_app_country] => US [patent_app_date] => 1992-03-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 1810 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 29 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/172/05172661.pdf [firstpage_image] =>[orig_patent_app_number] => 854152 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/854152
Variable cam phasing device Mar 19, 1992 Issued
Array ( [id] => 2936456 [patent_doc_number] => 05220891 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-06-22 [patent_title] => 'Variable cam engine' [patent_app_type] => 1 [patent_app_number] => 7/852061 [patent_app_country] => US [patent_app_date] => 1992-03-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 2446 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/220/05220891.pdf [firstpage_image] =>[orig_patent_app_number] => 852061 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/852061
Variable cam engine Mar 15, 1992 Issued
Array ( [id] => 2919730 [patent_doc_number] => 05190000 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-03-02 [patent_title] => 'Rocker arm assembly' [patent_app_type] => 1 [patent_app_number] => 7/851837 [patent_app_country] => US [patent_app_date] => 1992-03-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 12 [patent_no_of_words] => 4858 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 114 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/190/05190000.pdf [firstpage_image] =>[orig_patent_app_number] => 851837 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/851837
Rocker arm assembly Mar 15, 1992 Issued
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