
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 number | Title of the application | Filing Date | Status |
|---|---|---|---|
Array
(
[id] => 2727020
[patent_doc_number] => 05027761
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-07-02
[patent_title] => 'Valve operating mechanism for internal combustion engine with a spark plug insertion hole in a rocker arm holder'
[patent_app_type] => 1
[patent_app_number] => 7/416287
[patent_app_country] => US
[patent_app_date] => 1989-10-02
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 8
[patent_figures_cnt] => 8
[patent_no_of_words] => 2506
[patent_no_of_claims] => 20
[patent_no_of_ind_claims] => 4
[patent_words_short_claim] => 145
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/027/05027761.pdf
[firstpage_image] =>[orig_patent_app_number] => 416287
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/416287 | Valve operating mechanism for internal combustion engine with a spark plug insertion hole in a rocker arm holder | Oct 1, 1989 | Issued |
Array
(
[id] => 2718258
[patent_doc_number] => 04996955
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-03-05
[patent_title] => 'Intake- and/or exhaust-valve timing control system for internal combustion engines'
[patent_app_type] => 1
[patent_app_number] => 7/414241
[patent_app_country] => US
[patent_app_date] => 1989-09-29
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 7
[patent_no_of_words] => 4996
[patent_no_of_claims] => 2
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 232
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/996/04996955.pdf
[firstpage_image] =>[orig_patent_app_number] => 414241
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/414241 | Intake- and/or exhaust-valve timing control system for internal combustion engines | Sep 28, 1989 | Issued |
Array
(
[id] => 2544396
[patent_doc_number] => 04960084
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-10-02
[patent_title] => 'Valve timing control system for internal combustion engine'
[patent_app_type] => 1
[patent_app_number] => 7/414236
[patent_app_country] => US
[patent_app_date] => 1989-09-29
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 2
[patent_no_of_words] => 3965
[patent_no_of_claims] => 11
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 240
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/960/04960084.pdf
[firstpage_image] =>[orig_patent_app_number] => 414236
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/414236 | Valve timing control system for internal combustion engine | Sep 28, 1989 | Issued |
Array
(
[id] => 2675971
[patent_doc_number] => 04989556
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-02-05
[patent_title] => 'Valve spring retainer for valve operating mechanism for internal combustion engine'
[patent_app_type] => 1
[patent_app_number] => 7/414692
[patent_app_country] => US
[patent_app_date] => 1989-09-28
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 7
[patent_figures_cnt] => 15
[patent_no_of_words] => 12312
[patent_no_of_claims] => 39
[patent_no_of_ind_claims] => 6
[patent_words_short_claim] => 53
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/989/04989556.pdf
[firstpage_image] =>[orig_patent_app_number] => 414692
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/414692 | Valve spring retainer for valve operating mechanism for internal combustion engine | Sep 27, 1989 | Issued |
Array
(
[id] => 2547912
[patent_doc_number] => 04944257
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-07-31
[patent_title] => 'Cold-formed rocker arm with bearing flanges and splash plate'
[patent_app_type] => 1
[patent_app_number] => 7/413229
[patent_app_country] => US
[patent_app_date] => 1989-09-27
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 4
[patent_no_of_words] => 1451
[patent_no_of_claims] => 19
[patent_no_of_ind_claims] => 4
[patent_words_short_claim] => 91
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/944/04944257.pdf
[firstpage_image] =>[orig_patent_app_number] => 413229
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/413229 | Cold-formed rocker arm with bearing flanges and splash plate | Sep 26, 1989 | Issued |
Array
(
[id] => 2582777
[patent_doc_number] => 04930464
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-06-05
[patent_title] => 'Hydraulically operating actuating device for a lift valve'
[patent_app_type] => 1
[patent_app_number] => 7/413212
[patent_app_country] => US
[patent_app_date] => 1989-09-27
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 7
[patent_figures_cnt] => 7
[patent_no_of_words] => 2616
[patent_no_of_claims] => 7
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 159
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/930/04930464.pdf
[firstpage_image] =>[orig_patent_app_number] => 413212
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/413212 | Hydraulically operating actuating device for a lift valve | Sep 26, 1989 | Issued |
Array
(
[id] => 2613153
[patent_doc_number] => 04936264
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-06-26
[patent_title] => 'Intake- and/or exhaust-valve timing control system for internal combustion engines'
[patent_app_type] => 1
[patent_app_number] => 7/411884
[patent_app_country] => US
[patent_app_date] => 1989-09-25
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 6
[patent_no_of_words] => 4916
[patent_no_of_claims] => 8
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 292
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/936/04936264.pdf
[firstpage_image] =>[orig_patent_app_number] => 411884
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/411884 | Intake- and/or exhaust-valve timing control system for internal combustion engines | Sep 24, 1989 | Issued |
| 07/406081 | VALVE DRIVING MEANS FOR V-TYPE ENGINE OF VEHICLE | Sep 11, 1989 | Abandoned |
| 07/405769 | ELECTRO-RHEOLOGICAL FUEL INJECTOR | Sep 10, 1989 | Abandoned |
Array
(
[id] => 2576987
[patent_doc_number] => 04922867
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-05-08
[patent_title] => 'Valve stop mechanism for internal combustion engines'
[patent_app_type] => 1
[patent_app_number] => 7/400706
[patent_app_country] => US
[patent_app_date] => 1989-08-30
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 4
[patent_no_of_words] => 4690
[patent_no_of_claims] => 15
[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/04/922/04922867.pdf
[firstpage_image] =>[orig_patent_app_number] => 400706
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/400706 | Valve stop mechanism for internal combustion engines | Aug 29, 1989 | Issued |
Array
(
[id] => 2726880
[patent_doc_number] => 05002022
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-03-26
[patent_title] => 'Valve control system with a variable timing hydraulic link'
[patent_app_type] => 1
[patent_app_number] => 7/400705
[patent_app_country] => US
[patent_app_date] => 1989-08-30
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 3
[patent_figures_cnt] => 6
[patent_no_of_words] => 7822
[patent_no_of_claims] => 14
[patent_no_of_ind_claims] => 3
[patent_words_short_claim] => 344
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/002/05002022.pdf
[firstpage_image] =>[orig_patent_app_number] => 400705
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/400705 | Valve control system with a variable timing hydraulic link | Aug 29, 1989 | Issued |
Array
(
[id] => 2582758
[patent_doc_number] => 04930463
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-06-05
[patent_title] => 'Electro-rheological valve control mechanism'
[patent_app_type] => 1
[patent_app_number] => 7/399178
[patent_app_country] => US
[patent_app_date] => 1989-08-28
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 12
[patent_figures_cnt] => 22
[patent_no_of_words] => 6662
[patent_no_of_claims] => 28
[patent_no_of_ind_claims] => 4
[patent_words_short_claim] => 152
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/930/04930463.pdf
[firstpage_image] =>[orig_patent_app_number] => 399178
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/399178 | Electro-rheological valve control mechanism | Aug 27, 1989 | Issued |
Array
(
[id] => 2618373
[patent_doc_number] => 04913106
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-04-03
[patent_title] => 'Variable duration valve lifter improvements'
[patent_app_type] => 1
[patent_app_number] => 7/398883
[patent_app_country] => US
[patent_app_date] => 1989-08-28
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 8
[patent_no_of_words] => 2973
[patent_no_of_claims] => 11
[patent_no_of_ind_claims] => 3
[patent_words_short_claim] => 36
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/913/04913106.pdf
[firstpage_image] =>[orig_patent_app_number] => 398883
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/398883 | Variable duration valve lifter improvements | Aug 27, 1989 | Issued |
Array
(
[id] => 2614851
[patent_doc_number] => 04951623
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-08-28
[patent_title] => 'Double overhead camshaft engine'
[patent_app_type] => 1
[patent_app_number] => 7/397854
[patent_app_country] => US
[patent_app_date] => 1989-08-24
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 5
[patent_no_of_words] => 2828
[patent_no_of_claims] => 10
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 165
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/951/04951623.pdf
[firstpage_image] =>[orig_patent_app_number] => 397854
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/397854 | Double overhead camshaft engine | Aug 23, 1989 | Issued |
Array
(
[id] => 2727002
[patent_doc_number] => 05027760
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-07-02
[patent_title] => 'Variable timing system for engine valve operating gear'
[patent_app_type] => 1
[patent_app_number] => 7/415249
[patent_app_country] => US
[patent_app_date] => 1989-08-22
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 8
[patent_no_of_words] => 3276
[patent_no_of_claims] => 7
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[patent_words_short_claim] => 323
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/027/05027760.pdf
[firstpage_image] =>[orig_patent_app_number] => 415249
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/415249 | Variable timing system for engine valve operating gear | Aug 21, 1989 | Issued |
Array
(
[id] => 2688694
[patent_doc_number] => 05012773
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-05-07
[patent_title] => 'Intake- and/or exhaust-valve timing control system for internal combustion engine'
[patent_app_type] => 1
[patent_app_number] => 7/395582
[patent_app_country] => US
[patent_app_date] => 1989-08-18
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 2
[patent_no_of_words] => 4094
[patent_no_of_claims] => 7
[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/05/012/05012773.pdf
[firstpage_image] =>[orig_patent_app_number] => 395582
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/395582 | Intake- and/or exhaust-valve timing control system for internal combustion engine | Aug 17, 1989 | Issued |
Array
(
[id] => 2617799
[patent_doc_number] => 04909197
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-03-20
[patent_title] => 'Cam follower assembly with pinless roller'
[patent_app_type] => 1
[patent_app_number] => 7/394668
[patent_app_country] => US
[patent_app_date] => 1989-08-16
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 3
[patent_figures_cnt] => 9
[patent_no_of_words] => 3719
[patent_no_of_claims] => 13
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 150
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/909/04909197.pdf
[firstpage_image] =>[orig_patent_app_number] => 394668
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/394668 | Cam follower assembly with pinless roller | Aug 15, 1989 | Issued |
Array
(
[id] => 2606520
[patent_doc_number] => 04949687
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-08-21
[patent_title] => 'Four valve cylinder head for a four cycle engine'
[patent_app_type] => 1
[patent_app_number] => 7/399478
[patent_app_country] => US
[patent_app_date] => 1989-08-16
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 3
[patent_figures_cnt] => 3
[patent_no_of_words] => 2640
[patent_no_of_claims] => 20
[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/04/949/04949687.pdf
[firstpage_image] =>[orig_patent_app_number] => 399478
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/399478 | Four valve cylinder head for a four cycle engine | Aug 15, 1989 | Issued |
Array
(
[id] => 2547894
[patent_doc_number] => 04944256
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-07-31
[patent_title] => 'Rocker arm arrangement for internal combustion engine poppet valves and the like'
[patent_app_type] => 1
[patent_app_number] => 7/394091
[patent_app_country] => US
[patent_app_date] => 1989-08-15
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 8
[patent_figures_cnt] => 16
[patent_no_of_words] => 3100
[patent_no_of_claims] => 10
[patent_no_of_ind_claims] => 1
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[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/944/04944256.pdf
[firstpage_image] =>[orig_patent_app_number] => 394091
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/394091 | Rocker arm arrangement for internal combustion engine poppet valves and the like | Aug 14, 1989 | Issued |
Array
(
[id] => 2718240
[patent_doc_number] => 04996954
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-03-05
[patent_title] => 'Method for detecting an irregularity in valve-timing changeover in an engine'
[patent_app_type] => 1
[patent_app_number] => 7/388235
[patent_app_country] => US
[patent_app_date] => 1989-08-01
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 8
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[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/996/04996954.pdf
[firstpage_image] =>[orig_patent_app_number] => 388235
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/388235 | Method for detecting an irregularity in valve-timing changeover in an engine | Jul 31, 1989 | Issued |