
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] => 2704564
[patent_doc_number] => 05056477
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-10-15
[patent_title] => 'Apparatus for adjusting a rotational angular relationship between a camshaft and its drive element'
[patent_app_type] => 1
[patent_app_number] => 7/549034
[patent_app_country] => US
[patent_app_date] => 1990-07-06
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 9
[patent_no_of_words] => 4313
[patent_no_of_claims] => 24
[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/05/056/05056477.pdf
[firstpage_image] =>[orig_patent_app_number] => 549034
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/549034 | Apparatus for adjusting a rotational angular relationship between a camshaft and its drive element | Jul 5, 1990 | Issued |
Array
(
[id] => 2654459
[patent_doc_number] => 04982706
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-01-08
[patent_title] => 'Valve control apparatus having a magnet valve for internal combustion engines'
[patent_app_type] => 1
[patent_app_number] => 7/548406
[patent_app_country] => US
[patent_app_date] => 1990-07-05
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 1
[patent_figures_cnt] => 2
[patent_no_of_words] => 2514
[patent_no_of_claims] => 20
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 212
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/982/04982706.pdf
[firstpage_image] =>[orig_patent_app_number] => 548406
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/548406 | Valve control apparatus having a magnet valve for internal combustion engines | Jul 4, 1990 | Issued |
Array
(
[id] => 2662741
[patent_doc_number] => 05065709
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-11-19
[patent_title] => 'Valve operating system for internal combustion engine'
[patent_app_type] => 1
[patent_app_number] => 7/548123
[patent_app_country] => US
[patent_app_date] => 1990-07-05
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 7
[patent_figures_cnt] => 8
[patent_no_of_words] => 7495
[patent_no_of_claims] => 1
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 153
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/065/05065709.pdf
[firstpage_image] =>[orig_patent_app_number] => 548123
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/548123 | Valve operating system for internal combustion engine | Jul 4, 1990 | Issued |
Array
(
[id] => 2747507
[patent_doc_number] => 05005538
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-04-09
[patent_title] => 'Extended circumference intake poppet valve system for opening and sealing a single valve seat'
[patent_app_type] => 1
[patent_app_number] => 7/547810
[patent_app_country] => US
[patent_app_date] => 1990-07-03
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 4
[patent_no_of_words] => 2131
[patent_no_of_claims] => 2
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 119
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/005/05005538.pdf
[firstpage_image] =>[orig_patent_app_number] => 547810
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/547810 | Extended circumference intake poppet valve system for opening and sealing a single valve seat | Jul 2, 1990 | Issued |
Array
(
[id] => 2694031
[patent_doc_number] => 05052351
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-10-01
[patent_title] => 'Double overhead camshaft bearing structure'
[patent_app_type] => 1
[patent_app_number] => 7/545953
[patent_app_country] => US
[patent_app_date] => 1990-07-02
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 7
[patent_no_of_words] => 2462
[patent_no_of_claims] => 8
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 182
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/052/05052351.pdf
[firstpage_image] =>[orig_patent_app_number] => 545953
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/545953 | Double overhead camshaft bearing structure | Jul 1, 1990 | Issued |
Array
(
[id] => 2727480
[patent_doc_number] => 05014655
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-05-14
[patent_title] => 'Camshaft drive of a multi-cylinder V-engine'
[patent_app_type] => 1
[patent_app_number] => 7/546881
[patent_app_country] => US
[patent_app_date] => 1990-07-02
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 3
[patent_figures_cnt] => 3
[patent_no_of_words] => 1248
[patent_no_of_claims] => 6
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 112
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/014/05014655.pdf
[firstpage_image] =>[orig_patent_app_number] => 546881
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/546881 | Camshaft drive of a multi-cylinder V-engine | Jul 1, 1990 | Issued |
Array
(
[id] => 2651495
[patent_doc_number] => 05033422
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-07-23
[patent_title] => 'Valve drive apparatus for double overhead camshaft engine'
[patent_app_type] => 1
[patent_app_number] => 7/545951
[patent_app_country] => US
[patent_app_date] => 1990-07-02
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 7
[patent_no_of_words] => 2261
[patent_no_of_claims] => 9
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 183
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/033/05033422.pdf
[firstpage_image] =>[orig_patent_app_number] => 545951
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/545951 | Valve drive apparatus for double overhead camshaft engine | Jul 1, 1990 | Issued |
Array
(
[id] => 2673882
[patent_doc_number] => 05018487
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-05-28
[patent_title] => 'Valve timing mechanism with eccentric bushing on rocker shaft'
[patent_app_type] => 1
[patent_app_number] => 7/545741
[patent_app_country] => US
[patent_app_date] => 1990-06-29
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 6
[patent_figures_cnt] => 16
[patent_no_of_words] => 5643
[patent_no_of_claims] => 22
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 198
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/018/05018487.pdf
[firstpage_image] =>[orig_patent_app_number] => 545741
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/545741 | Valve timing mechanism with eccentric bushing on rocker shaft | Jun 28, 1990 | Issued |
Array
(
[id] => 2777511
[patent_doc_number] => 05143032
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1992-09-01
[patent_title] => 'Timing variator, particularly for changing the relative timing between a camshaft and the timing drive mechanism of an internal combustion engine'
[patent_app_type] => 1
[patent_app_number] => 7/545021
[patent_app_country] => US
[patent_app_date] => 1990-06-28
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 3
[patent_figures_cnt] => 4
[patent_no_of_words] => 1767
[patent_no_of_claims] => 12
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 212
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/143/05143032.pdf
[firstpage_image] =>[orig_patent_app_number] => 545021
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/545021 | Timing variator, particularly for changing the relative timing between a camshaft and the timing drive mechanism of an internal combustion engine | Jun 27, 1990 | Issued |
Array
(
[id] => 2687869
[patent_doc_number] => 05054440
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-10-08
[patent_title] => 'Cam follower device for valve driving mechanism in engine'
[patent_app_type] => 1
[patent_app_number] => 7/543645
[patent_app_country] => US
[patent_app_date] => 1990-06-26
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 5
[patent_figures_cnt] => 18
[patent_no_of_words] => 5030
[patent_no_of_claims] => 15
[patent_no_of_ind_claims] => 6
[patent_words_short_claim] => 24
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/054/05054440.pdf
[firstpage_image] =>[orig_patent_app_number] => 543645
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/543645 | Cam follower device for valve driving mechanism in engine | Jun 25, 1990 | Issued |
Array
(
[id] => 2689707
[patent_doc_number] => 05060605
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-10-29
[patent_title] => 'Valve drive mechanism for vehicle engine'
[patent_app_type] => 1
[patent_app_number] => 7/543591
[patent_app_country] => US
[patent_app_date] => 1990-06-26
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 6
[patent_figures_cnt] => 10
[patent_no_of_words] => 3883
[patent_no_of_claims] => 21
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 183
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/060/05060605.pdf
[firstpage_image] =>[orig_patent_app_number] => 543591
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/543591 | Valve drive mechanism for vehicle engine | Jun 25, 1990 | Issued |
Array
(
[id] => 2729384
[patent_doc_number] => 05036807
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-08-06
[patent_title] => 'Variable valve timing lift device'
[patent_app_type] => 1
[patent_app_number] => 7/541893
[patent_app_country] => US
[patent_app_date] => 1990-06-22
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 5
[patent_no_of_words] => 2619
[patent_no_of_claims] => 2
[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/05/036/05036807.pdf
[firstpage_image] =>[orig_patent_app_number] => 541893
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/541893 | Variable valve timing lift device | Jun 21, 1990 | Issued |
Array
(
[id] => 2747543
[patent_doc_number] => 05005540
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-04-09
[patent_title] => 'Valve timing control system for an internal combustion engine'
[patent_app_type] => 1
[patent_app_number] => 7/541711
[patent_app_country] => US
[patent_app_date] => 1990-06-21
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 4
[patent_no_of_words] => 2705
[patent_no_of_claims] => 4
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 182
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/005/05005540.pdf
[firstpage_image] =>[orig_patent_app_number] => 541711
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/541711 | Valve timing control system for an internal combustion engine | Jun 20, 1990 | Issued |
Array
(
[id] => 2659667
[patent_doc_number] => 05044329
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-09-03
[patent_title] => 'Adjustable pushrod guide plate assembly'
[patent_app_type] => 1
[patent_app_number] => 7/524035
[patent_app_country] => US
[patent_app_date] => 1990-06-19
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 1
[patent_figures_cnt] => 1
[patent_no_of_words] => 433
[patent_no_of_claims] => 4
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 64
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/044/05044329.pdf
[firstpage_image] =>[orig_patent_app_number] => 524035
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/524035 | Adjustable pushrod guide plate assembly | Jun 18, 1990 | Issued |
Array
(
[id] => 2796334
[patent_doc_number] => 05085181
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1992-02-04
[patent_title] => 'Electro/hydraulic variable valve timing system'
[patent_app_type] => 1
[patent_app_number] => 7/539238
[patent_app_country] => US
[patent_app_date] => 1990-06-18
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 1
[patent_figures_cnt] => 6
[patent_no_of_words] => 2955
[patent_no_of_claims] => 11
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 69
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/085/05085181.pdf
[firstpage_image] =>[orig_patent_app_number] => 539238
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/539238 | Electro/hydraulic variable valve timing system | Jun 17, 1990 | Issued |
Array
(
[id] => 2833134
[patent_doc_number] => 05125370
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1992-06-30
[patent_title] => 'Control system for electromagnetically driven valve'
[patent_app_type] => 1
[patent_app_number] => 7/499338
[patent_app_country] => US
[patent_app_date] => 1990-06-18
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 3
[patent_no_of_words] => 2383
[patent_no_of_claims] => 11
[patent_no_of_ind_claims] => 3
[patent_words_short_claim] => 155
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/125/05125370.pdf
[firstpage_image] =>[orig_patent_app_number] => 499338
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/499338 | Control system for electromagnetically driven valve | Jun 17, 1990 | Issued |
Array
(
[id] => 2844909
[patent_doc_number] => 05081976
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1992-01-21
[patent_title] => 'Bucket tappet for an internal combustion engine with overhead camshaft'
[patent_app_type] => 1
[patent_app_number] => 7/539210
[patent_app_country] => US
[patent_app_date] => 1990-06-18
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 1
[patent_figures_cnt] => 1
[patent_no_of_words] => 1194
[patent_no_of_claims] => 12
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 104
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/081/05081976.pdf
[firstpage_image] =>[orig_patent_app_number] => 539210
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/539210 | Bucket tappet for an internal combustion engine with overhead camshaft | Jun 17, 1990 | Issued |
Array
(
[id] => 2652869
[patent_doc_number] => 05025761
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-06-25
[patent_title] => 'Variable valve-timing device'
[patent_app_type] => 1
[patent_app_number] => 7/537374
[patent_app_country] => US
[patent_app_date] => 1990-06-13
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 3
[patent_figures_cnt] => 9
[patent_no_of_words] => 2125
[patent_no_of_claims] => 6
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 470
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/025/05025761.pdf
[firstpage_image] =>[orig_patent_app_number] => 537374
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/537374 | Variable valve-timing device | Jun 12, 1990 | Issued |
Array
(
[id] => 2689689
[patent_doc_number] => 05060604
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-10-29
[patent_title] => 'Method of detecting failure of a valve timing changeover control system of an internal combustion engine'
[patent_app_type] => 1
[patent_app_number] => 7/536745
[patent_app_country] => US
[patent_app_date] => 1990-06-12
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 7
[patent_figures_cnt] => 7
[patent_no_of_words] => 7162
[patent_no_of_claims] => 12
[patent_no_of_ind_claims] => 5
[patent_words_short_claim] => 44
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/060/05060604.pdf
[firstpage_image] =>[orig_patent_app_number] => 536745
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/536745 | Method of detecting failure of a valve timing changeover control system of an internal combustion engine | Jun 11, 1990 | Issued |
| 07/533733 | ELECTRO-RHEOLOGICAL VALVE CONTROL MECHANISM | Jun 4, 1990 | Abandoned |