
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 |
|---|---|---|---|
| 07/533737 | ELECTRO-RHEOLOGICAL VALVE | Jun 4, 1990 | Abandoned |
Array
(
[id] => 2688788
[patent_doc_number] => 04991550
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-02-12
[patent_title] => 'Oil pressure rush adjuster of a directly acting type'
[patent_app_type] => 1
[patent_app_number] => 7/531038
[patent_app_country] => US
[patent_app_date] => 1990-05-31
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 9
[patent_no_of_words] => 2537
[patent_no_of_claims] => 5
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 166
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/991/04991550.pdf
[firstpage_image] =>[orig_patent_app_number] => 531038
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/531038 | Oil pressure rush adjuster of a directly acting type | May 30, 1990 | Issued |
Array
(
[id] => 2728374
[patent_doc_number] => 05029560
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-07-09
[patent_title] => 'Oil pressure lash adjuster of a directly acting type'
[patent_app_type] => 1
[patent_app_number] => 7/531030
[patent_app_country] => US
[patent_app_date] => 1990-05-31
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 5
[patent_figures_cnt] => 12
[patent_no_of_words] => 2033
[patent_no_of_claims] => 1
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 109
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/029/05029560.pdf
[firstpage_image] =>[orig_patent_app_number] => 531030
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/531030 | Oil pressure lash adjuster of a directly acting type | May 30, 1990 | Issued |
Array
(
[id] => 2689740
[patent_doc_number] => 05060607
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-10-29
[patent_title] => 'Tappet structure'
[patent_app_type] => 1
[patent_app_number] => 7/530694
[patent_app_country] => US
[patent_app_date] => 1990-05-30
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 4
[patent_no_of_words] => 1981
[patent_no_of_claims] => 2
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 286
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/060/05060607.pdf
[firstpage_image] =>[orig_patent_app_number] => 530694
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/530694 | Tappet structure | May 29, 1990 | Issued |
Array
(
[id] => 2692700
[patent_doc_number] => 04981117
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-01-01
[patent_title] => 'Automatic clearance adjuster'
[patent_app_type] => 1
[patent_app_number] => 7/476390
[patent_app_country] => US
[patent_app_date] => 1990-05-29
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 3
[patent_no_of_words] => 2638
[patent_no_of_claims] => 4
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 218
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/981/04981117.pdf
[firstpage_image] =>[orig_patent_app_number] => 476390
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/476390 | Automatic clearance adjuster | May 28, 1990 | Issued |
Array
(
[id] => 2629073
[patent_doc_number] => 04979475
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-12-25
[patent_title] => 'Rocker arm with rounded channel to engage a valve stem with semi-spherical end'
[patent_app_type] => 1
[patent_app_number] => 7/528417
[patent_app_country] => US
[patent_app_date] => 1990-05-25
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 5
[patent_no_of_words] => 1619
[patent_no_of_claims] => 14
[patent_no_of_ind_claims] => 3
[patent_words_short_claim] => 128
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/979/04979475.pdf
[firstpage_image] =>[orig_patent_app_number] => 528417
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/528417 | Rocker arm with rounded channel to engage a valve stem with semi-spherical end | May 24, 1990 | Issued |
Array
(
[id] => 2687331
[patent_doc_number] => 05000137
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-03-19
[patent_title] => 'Combustion engine push rod and a method of manufacturing said push rod'
[patent_app_type] => 1
[patent_app_number] => 7/527752
[patent_app_country] => US
[patent_app_date] => 1990-05-23
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 7
[patent_no_of_words] => 1949
[patent_no_of_claims] => 6
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 269
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/000/05000137.pdf
[firstpage_image] =>[orig_patent_app_number] => 527752
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/527752 | Combustion engine push rod and a method of manufacturing said push rod | May 22, 1990 | Issued |
Array
(
[id] => 2717115
[patent_doc_number] => 05050544
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-09-24
[patent_title] => 'Structure for mounting the same type of camshafts on different types of cylinder heads'
[patent_app_type] => 1
[patent_app_number] => 7/526302
[patent_app_country] => US
[patent_app_date] => 1990-05-21
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 5
[patent_figures_cnt] => 8
[patent_no_of_words] => 4906
[patent_no_of_claims] => 7
[patent_no_of_ind_claims] => 3
[patent_words_short_claim] => 126
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/050/05050544.pdf
[firstpage_image] =>[orig_patent_app_number] => 526302
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/526302 | Structure for mounting the same type of camshafts on different types of cylinder heads | May 20, 1990 | Issued |
Array
(
[id] => 2742264
[patent_doc_number] => 04993369
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-02-19
[patent_title] => 'Internal combustion engine'
[patent_app_type] => 1
[patent_app_number] => 7/526065
[patent_app_country] => US
[patent_app_date] => 1990-05-18
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 10
[patent_no_of_words] => 4174
[patent_no_of_claims] => 20
[patent_no_of_ind_claims] => 9
[patent_words_short_claim] => 88
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/993/04993369.pdf
[firstpage_image] =>[orig_patent_app_number] => 526065
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/526065 | Internal combustion engine | May 17, 1990 | Issued |
Array
(
[id] => 2817520
[patent_doc_number] => 05119773
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1992-06-09
[patent_title] => 'Apparatus for operating the valves on internal combustion engines with a variable valve lift curve'
[patent_app_type] => 1
[patent_app_number] => 7/466443
[patent_app_country] => US
[patent_app_date] => 1990-05-16
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 4
[patent_no_of_words] => 2462
[patent_no_of_claims] => 22
[patent_no_of_ind_claims] => 10
[patent_words_short_claim] => 21
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/119/05119773.pdf
[firstpage_image] =>[orig_patent_app_number] => 466443
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/466443 | Apparatus for operating the valves on internal combustion engines with a variable valve lift curve | May 15, 1990 | Issued |
Array
(
[id] => 2615956
[patent_doc_number] => 04976230
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-12-11
[patent_title] => 'Valve mechanism, preferably for an internal combustion engine, having pressure medium supply passage'
[patent_app_type] => 1
[patent_app_number] => 7/523864
[patent_app_country] => US
[patent_app_date] => 1990-05-15
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 1
[patent_figures_cnt] => 1
[patent_no_of_words] => 2049
[patent_no_of_claims] => 5
[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/04/976/04976230.pdf
[firstpage_image] =>[orig_patent_app_number] => 523864
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/523864 | Valve mechanism, preferably for an internal combustion engine, having pressure medium supply passage | May 14, 1990 | Issued |
Array
(
[id] => 2747525
[patent_doc_number] => 05005539
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-04-09
[patent_title] => 'Engine cycle control system'
[patent_app_type] => 1
[patent_app_number] => 7/522320
[patent_app_country] => US
[patent_app_date] => 1990-05-11
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 11
[patent_no_of_words] => 3293
[patent_no_of_claims] => 3
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 372
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/005/05005539.pdf
[firstpage_image] =>[orig_patent_app_number] => 522320
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/522320 | Engine cycle control system | May 10, 1990 | Issued |
Array
(
[id] => 2828744
[patent_doc_number] => 05103780
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1992-04-14
[patent_title] => 'Valve timing control system for internal combustion engine'
[patent_app_type] => 1
[patent_app_number] => 7/521698
[patent_app_country] => US
[patent_app_date] => 1990-05-10
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 2
[patent_no_of_words] => 3954
[patent_no_of_claims] => 14
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 192
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/103/05103780.pdf
[firstpage_image] =>[orig_patent_app_number] => 521698
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/521698 | Valve timing control system for internal combustion engine | May 9, 1990 | Issued |
Array
(
[id] => 2753169
[patent_doc_number] => 05074259
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-12-24
[patent_title] => 'Electrically operated cylinder valve'
[patent_app_type] => 1
[patent_app_number] => 7/520725
[patent_app_country] => US
[patent_app_date] => 1990-05-09
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 2
[patent_no_of_words] => 2197
[patent_no_of_claims] => 19
[patent_no_of_ind_claims] => 3
[patent_words_short_claim] => 228
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/074/05074259.pdf
[firstpage_image] =>[orig_patent_app_number] => 520725
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/520725 | Electrically operated cylinder valve | May 8, 1990 | Issued |
Array
(
[id] => 2728354
[patent_doc_number] => 04986227
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-01-22
[patent_title] => 'Variable lift valve train'
[patent_app_type] => 1
[patent_app_number] => 7/520550
[patent_app_country] => US
[patent_app_date] => 1990-05-08
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 5
[patent_figures_cnt] => 7
[patent_no_of_words] => 3938
[patent_no_of_claims] => 15
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 155
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/986/04986227.pdf
[firstpage_image] =>[orig_patent_app_number] => 520550
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/520550 | Variable lift valve train | May 7, 1990 | Issued |
Array
(
[id] => 2714591
[patent_doc_number] => 05031585
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-07-16
[patent_title] => 'Electromagnetic brake for a camshaft phase change device'
[patent_app_type] => 1
[patent_app_number] => 7/519969
[patent_app_country] => US
[patent_app_date] => 1990-05-07
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 5
[patent_figures_cnt] => 5
[patent_no_of_words] => 2126
[patent_no_of_claims] => 11
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 188
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/031/05031585.pdf
[firstpage_image] =>[orig_patent_app_number] => 519969
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/519969 | Electromagnetic brake for a camshaft phase change device | May 6, 1990 | Issued |
Array
(
[id] => 2753188
[patent_doc_number] => 05074260
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-12-24
[patent_title] => 'Valve driving device and valve driving method for internal combustion engine'
[patent_app_type] => 1
[patent_app_number] => 7/515438
[patent_app_country] => US
[patent_app_date] => 1990-04-27
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 7
[patent_figures_cnt] => 18
[patent_no_of_words] => 5566
[patent_no_of_claims] => 14
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 88
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/074/05074260.pdf
[firstpage_image] =>[orig_patent_app_number] => 515438
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/515438 | Valve driving device and valve driving method for internal combustion engine | Apr 26, 1990 | Issued |
Array
(
[id] => 2698624
[patent_doc_number] => 05007382
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-04-16
[patent_title] => 'Cycle changeable engine'
[patent_app_type] => 1
[patent_app_number] => 7/514445
[patent_app_country] => US
[patent_app_date] => 1990-04-25
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 3
[patent_figures_cnt] => 4
[patent_no_of_words] => 6250
[patent_no_of_claims] => 8
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 277
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/007/05007382.pdf
[firstpage_image] =>[orig_patent_app_number] => 514445
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/514445 | Cycle changeable engine | Apr 24, 1990 | Issued |
Array
(
[id] => 2673900
[patent_doc_number] => 05018488
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-05-28
[patent_title] => 'Hydraulic tappets'
[patent_app_type] => 1
[patent_app_number] => 7/514090
[patent_app_country] => US
[patent_app_date] => 1990-04-25
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 1
[patent_figures_cnt] => 1
[patent_no_of_words] => 1619
[patent_no_of_claims] => 8
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 161
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/018/05018488.pdf
[firstpage_image] =>[orig_patent_app_number] => 514090
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/514090 | Hydraulic tappets | Apr 24, 1990 | Issued |
Array
(
[id] => 2738582
[patent_doc_number] => 05058541
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-10-22
[patent_title] => 'Valve operating system of internal combustion engine'
[patent_app_type] => 1
[patent_app_number] => 7/513795
[patent_app_country] => US
[patent_app_date] => 1990-04-24
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 5
[patent_figures_cnt] => 6
[patent_no_of_words] => 4195
[patent_no_of_claims] => 7
[patent_no_of_ind_claims] => 4
[patent_words_short_claim] => 119
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/058/05058541.pdf
[firstpage_image] =>[orig_patent_app_number] => 513795
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/513795 | Valve operating system of internal combustion engine | Apr 23, 1990 | Issued |