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] => 2572630 [patent_doc_number] => 04917057 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-04-17 [patent_title] => 'Control method for valve-timing changeover in engine' [patent_app_type] => 1 [patent_app_number] => 7/388144 [patent_app_country] => US [patent_app_date] => 1989-08-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 11 [patent_no_of_words] => 6417 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 124 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/917/04917057.pdf [firstpage_image] =>[orig_patent_app_number] => 388144 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/388144
Control method for valve-timing changeover in engine Jul 31, 1989 Issued
Array ( [id] => 2665595 [patent_doc_number] => 05003937 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-04-02 [patent_title] => 'Valve operating system for internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/388123 [patent_app_country] => US [patent_app_date] => 1989-08-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 20 [patent_no_of_words] => 9893 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 9 [patent_words_short_claim] => 111 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/003/05003937.pdf [firstpage_image] =>[orig_patent_app_number] => 388123 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/388123
Valve operating system for internal combustion engine Jul 31, 1989 Issued
Array ( [id] => 2697414 [patent_doc_number] => 05009203 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-04-23 [patent_title] => 'Control method for valve-timing changeover in engine' [patent_app_type] => 1 [patent_app_number] => 7/388170 [patent_app_country] => US [patent_app_date] => 1989-08-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 10 [patent_no_of_words] => 6339 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 208 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/009/05009203.pdf [firstpage_image] =>[orig_patent_app_number] => 388170 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/388170
Control method for valve-timing changeover in engine Jul 31, 1989 Issued
Array ( [id] => 2544369 [patent_doc_number] => 04960083 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-10-02 [patent_title] => 'Failsafe method in connection with valve timing-changeover control for internal combustion engines' [patent_app_type] => 1 [patent_app_number] => 7/388647 [patent_app_country] => US [patent_app_date] => 1989-08-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 40 [patent_no_of_words] => 13129 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 49 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/960/04960083.pdf [firstpage_image] =>[orig_patent_app_number] => 388647 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/388647
Failsafe method in connection with valve timing-changeover control for internal combustion engines Jul 31, 1989 Issued
Array ( [id] => 2637503 [patent_doc_number] => 04928640 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-05-29 [patent_title] => 'Autocalibration of camshaft phasing feedback in a variable valve timing system' [patent_app_type] => 1 [patent_app_number] => 7/383385 [patent_app_country] => US [patent_app_date] => 1989-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 3 [patent_no_of_words] => 1634 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 209 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/928/04928640.pdf [firstpage_image] =>[orig_patent_app_number] => 383385 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/383385
Autocalibration of camshaft phasing feedback in a variable valve timing system Jul 19, 1989 Issued
Array ( [id] => 2617743 [patent_doc_number] => 04909194 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-03-20 [patent_title] => 'Modular position controller for variable valve timing' [patent_app_type] => 1 [patent_app_number] => 7/383382 [patent_app_country] => US [patent_app_date] => 1989-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1629 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 178 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/909/04909194.pdf [firstpage_image] =>[orig_patent_app_number] => 383382 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/383382
Modular position controller for variable valve timing Jul 19, 1989 Issued
Array ( [id] => 2617763 [patent_doc_number] => 04909195 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-03-20 [patent_title] => 'Valve operating system of internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/383188 [patent_app_country] => US [patent_app_date] => 1989-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 7115 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 70 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/909/04909195.pdf [firstpage_image] =>[orig_patent_app_number] => 383188 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/383188
Valve operating system of internal combustion engine Jul 19, 1989 Issued
Array ( [id] => 2617091 [patent_doc_number] => 04957078 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-09-18 [patent_title] => 'V-type multi-cylinder engine' [patent_app_type] => 1 [patent_app_number] => 7/382093 [patent_app_country] => US [patent_app_date] => 1989-07-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2442 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 137 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/957/04957078.pdf [firstpage_image] =>[orig_patent_app_number] => 382093 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/382093
V-type multi-cylinder engine Jul 18, 1989 Issued
Array ( [id] => 2574966 [patent_doc_number] => 04932372 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-06-12 [patent_title] => 'Apparatus and method for retarding a turbocharged engine' [patent_app_type] => 1 [patent_app_number] => 7/381366 [patent_app_country] => US [patent_app_date] => 1989-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 3976 [patent_no_of_claims] => 13 [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/04/932/04932372.pdf [firstpage_image] =>[orig_patent_app_number] => 381366 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/381366
Apparatus and method for retarding a turbocharged engine Jul 17, 1989 Issued
Array ( [id] => 2608682 [patent_doc_number] => 04915066 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-04-10 [patent_title] => 'Valve train for V-type double-overhead-camshaft engine' [patent_app_type] => 1 [patent_app_number] => 7/379975 [patent_app_country] => US [patent_app_date] => 1989-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 8 [patent_no_of_words] => 4142 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 361 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/915/04915066.pdf [firstpage_image] =>[orig_patent_app_number] => 379975 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/379975
Valve train for V-type double-overhead-camshaft engine Jul 13, 1989 Issued
Array ( [id] => 2648321 [patent_doc_number] => 04903650 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-02-27 [patent_title] => 'Apparatus for relative angular adjustment between two shafts in drive connection' [patent_app_type] => 1 [patent_app_number] => 7/378965 [patent_app_country] => US [patent_app_date] => 1989-07-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 3127 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 178 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/903/04903650.pdf [firstpage_image] =>[orig_patent_app_number] => 378965 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/378965
Apparatus for relative angular adjustment between two shafts in drive connection Jul 11, 1989 Issued
Array ( [id] => 2647355 [patent_doc_number] => 04934348 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-06-19 [patent_title] => 'Valve operation control system of internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/366139 [patent_app_country] => US [patent_app_date] => 1989-06-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 16 [patent_no_of_words] => 6349 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 198 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/934/04934348.pdf [firstpage_image] =>[orig_patent_app_number] => 366139 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/366139
Valve operation control system of internal combustion engine Jun 13, 1989 Issued
Array ( [id] => 2620132 [patent_doc_number] => 04892068 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-01-09 [patent_title] => 'Geared automatic compression release for an internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/364745 [patent_app_country] => US [patent_app_date] => 1989-06-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 2295 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 171 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/892/04892068.pdf [firstpage_image] =>[orig_patent_app_number] => 364745 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/364745
Geared automatic compression release for an internal combustion engine Jun 8, 1989 Issued
Array ( [id] => 2796299 [patent_doc_number] => 05085179 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-02-04 [patent_title] => 'Double poppet valve apparatus' [patent_app_type] => 1 [patent_app_number] => 7/359979 [patent_app_country] => US [patent_app_date] => 1989-06-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 1543 [patent_no_of_claims] => 12 [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/05/085/05085179.pdf [firstpage_image] =>[orig_patent_app_number] => 359979 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/359979
Double poppet valve apparatus May 31, 1989 Issued
Array ( [id] => 2637736 [patent_doc_number] => 04928650 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-05-29 [patent_title] => 'Operating arrangement for internal combustion engine poppet valves and the like' [patent_app_type] => 1 [patent_app_number] => 7/329846 [patent_app_country] => US [patent_app_date] => 1989-05-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 20 [patent_no_of_words] => 4873 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 191 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/928/04928650.pdf [firstpage_image] =>[orig_patent_app_number] => 329846 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/329846
Operating arrangement for internal combustion engine poppet valves and the like May 27, 1989 Issued
Array ( [id] => 2644105 [patent_doc_number] => 04945871 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-08-07 [patent_title] => 'Hydraulic valve lifter for internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/357005 [patent_app_country] => US [patent_app_date] => 1989-05-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 4143 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 277 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/945/04945871.pdf [firstpage_image] =>[orig_patent_app_number] => 357005 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/357005
Hydraulic valve lifter for internal combustion engine May 26, 1989 Issued
Array ( [id] => 2629057 [patent_doc_number] => 04979474 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-12-25 [patent_title] => 'Camshaft arrangement for multi valve engine' [patent_app_type] => 1 [patent_app_number] => 7/357477 [patent_app_country] => US [patent_app_date] => 1989-05-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3264 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/979/04979474.pdf [firstpage_image] =>[orig_patent_app_number] => 357477 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/357477
Camshaft arrangement for multi valve engine May 25, 1989 Issued
Array ( [id] => 2569375 [patent_doc_number] => 04926804 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-05-22 [patent_title] => 'Mechanism for switching valve operating modes in an internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/356915 [patent_app_country] => US [patent_app_date] => 1989-05-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 4068 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 148 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/926/04926804.pdf [firstpage_image] =>[orig_patent_app_number] => 356915 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/356915
Mechanism for switching valve operating modes in an internal combustion engine May 22, 1989 Issued
Array ( [id] => 2613189 [patent_doc_number] => 04936266 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-06-26 [patent_title] => 'Valve drive train for internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/353772 [patent_app_country] => US [patent_app_date] => 1989-05-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2174 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/936/04936266.pdf [firstpage_image] =>[orig_patent_app_number] => 353772 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/353772
Valve drive train for internal combustion engine May 17, 1989 Issued
Array ( [id] => 2461583 [patent_doc_number] => 04889087 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-12-26 [patent_title] => 'Tensioning arrangement for a power-transmitting element incorporated in a transmission' [patent_app_type] => 1 [patent_app_number] => 7/352760 [patent_app_country] => US [patent_app_date] => 1989-05-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 2972 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/889/04889087.pdf [firstpage_image] =>[orig_patent_app_number] => 352760 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/352760
Tensioning arrangement for a power-transmitting element incorporated in a transmission May 15, 1989 Issued
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