
Li Wu Chang
Examiner (ID: 335, Phone: (571)270-3809 , Office: P/2124 )
| Most Active Art Unit | 2124 |
| Art Unit(s) | 2142, 2129, 2124 |
| Total Applications | 877 |
| Issued Applications | 744 |
| Pending Applications | 34 |
| Abandoned Applications | 120 |
Applications
| Application number | Title of the application | Filing Date | Status |
|---|---|---|---|
Array
(
[id] => 2035265
[patent_doc_number] => 04413935
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1983-11-08
[patent_title] => 'Flow splitter for dividing a stream of pulverulent material into multiple streams'
[patent_app_type] => 1
[patent_app_number] => 6/278242
[patent_app_country] => US
[patent_app_date] => 1981-06-29
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 2
[patent_no_of_words] => 2475
[patent_no_of_claims] => 7
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 273
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/413/04413935.pdf
[firstpage_image] =>[orig_patent_app_number] => 278242
[rel_patent_id] =>[rel_patent_doc_number] =>) 06/278242 | Flow splitter for dividing a stream of pulverulent material into multiple streams | Jun 28, 1981 | Issued |
Array
(
[id] => 2037865
[patent_doc_number] => 04412762
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1983-11-01
[patent_title] => 'Pneumatic unloading of particulates'
[patent_app_type] => 1
[patent_app_number] => 6/277301
[patent_app_country] => US
[patent_app_date] => 1981-06-25
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 4
[patent_no_of_words] => 2638
[patent_no_of_claims] => 6
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 77
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/412/04412762.pdf
[firstpage_image] =>[orig_patent_app_number] => 277301
[rel_patent_id] =>[rel_patent_doc_number] =>) 06/277301 | Pneumatic unloading of particulates | Jun 24, 1981 | Issued |
Array
(
[id] => 2040098
[patent_doc_number] => 04382725
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1983-05-10
[patent_title] => 'Pneumatic outlet valve'
[patent_app_type] => 1
[patent_app_number] => 6/250793
[patent_app_country] => US
[patent_app_date] => 1981-04-03
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 6
[patent_no_of_words] => 1840
[patent_no_of_claims] => 20
[patent_no_of_ind_claims] => 3
[patent_words_short_claim] => 132
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/382/04382725.pdf
[firstpage_image] =>[orig_patent_app_number] => 250793
[rel_patent_id] =>[rel_patent_doc_number] =>) 06/250793 | Pneumatic outlet valve | Apr 2, 1981 | Issued |
Array
(
[id] => 2108410
[patent_doc_number] => 04451183
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1984-05-29
[patent_title] => 'Method and arrangement of transporting aggregate, fragmented material and the like'
[patent_app_type] => 1
[patent_app_number] => 6/250409
[patent_app_country] => US
[patent_app_date] => 1981-04-02
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 1
[patent_figures_cnt] => 4
[patent_no_of_words] => 2759
[patent_no_of_claims] => 2
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 141
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/451/04451183.pdf
[firstpage_image] =>[orig_patent_app_number] => 250409
[rel_patent_id] =>[rel_patent_doc_number] =>) 06/250409 | Method and arrangement of transporting aggregate, fragmented material and the like | Apr 1, 1981 | Issued |
Array
(
[id] => 2042920
[patent_doc_number] => 04405265
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1983-09-20
[patent_title] => 'Method and apparatus for the continuous transfer of particulates from a liquid conveying medium to a gaseous conveying medium'
[patent_app_type] => 1
[patent_app_number] => 6/245078
[patent_app_country] => US
[patent_app_date] => 1981-03-18
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 3
[patent_figures_cnt] => 4
[patent_no_of_words] => 2634
[patent_no_of_claims] => 8
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 242
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/405/04405265.pdf
[firstpage_image] =>[orig_patent_app_number] => 245078
[rel_patent_id] =>[rel_patent_doc_number] =>) 06/245078 | Method and apparatus for the continuous transfer of particulates from a liquid conveying medium to a gaseous conveying medium | Mar 17, 1981 | Issued |
Array
(
[id] => 2040081
[patent_doc_number] => 04382723
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1983-05-10
[patent_title] => 'Silo for storage of powder-like commodities'
[patent_app_type] => 1
[patent_app_number] => 6/244960
[patent_app_country] => US
[patent_app_date] => 1981-03-18
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 3
[patent_figures_cnt] => 6
[patent_no_of_words] => 2474
[patent_no_of_claims] => 24
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 151
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/382/04382723.pdf
[firstpage_image] =>[orig_patent_app_number] => 244960
[rel_patent_id] =>[rel_patent_doc_number] =>) 06/244960 | Silo for storage of powder-like commodities | Mar 17, 1981 | Issued |
Array
(
[id] => 2019410
[patent_doc_number] => 04372712
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1983-02-08
[patent_title] => 'Continuous transfer of particles from a gaseous conveying medium to a liquid conveying medium'
[patent_app_type] => 1
[patent_app_number] => 6/245110
[patent_app_country] => US
[patent_app_date] => 1981-03-18
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 1
[patent_figures_cnt] => 1
[patent_no_of_words] => 1501
[patent_no_of_claims] => 8
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 126
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/372/04372712.pdf
[firstpage_image] =>[orig_patent_app_number] => 245110
[rel_patent_id] =>[rel_patent_doc_number] =>) 06/245110 | Continuous transfer of particles from a gaseous conveying medium to a liquid conveying medium | Mar 17, 1981 | Issued |
Array
(
[id] => 2049631
[patent_doc_number] => 04389143
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1983-06-21
[patent_title] => 'Method of unplugging dense conveying system'
[patent_app_type] => 1
[patent_app_number] => 6/244528
[patent_app_country] => US
[patent_app_date] => 1981-03-16
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 1
[patent_figures_cnt] => 1
[patent_no_of_words] => 2153
[patent_no_of_claims] => 8
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 184
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/389/04389143.pdf
[firstpage_image] =>[orig_patent_app_number] => 244528
[rel_patent_id] =>[rel_patent_doc_number] =>) 06/244528 | Method of unplugging dense conveying system | Mar 15, 1981 | Issued |
Array
(
[id] => 2002327
[patent_doc_number] => 04411560
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1983-10-25
[patent_title] => 'Pneumatic hopper discharge outlet'
[patent_app_type] => 1
[patent_app_number] => 6/243390
[patent_app_country] => US
[patent_app_date] => 1981-03-13
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 6
[patent_figures_cnt] => 8
[patent_no_of_words] => 3045
[patent_no_of_claims] => 13
[patent_no_of_ind_claims] => 3
[patent_words_short_claim] => 109
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/411/04411560.pdf
[firstpage_image] =>[orig_patent_app_number] => 243390
[rel_patent_id] =>[rel_patent_doc_number] =>) 06/243390 | Pneumatic hopper discharge outlet | Mar 12, 1981 | Issued |
Array
(
[id] => 2029366
[patent_doc_number] => 04381839
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1983-05-03
[patent_title] => 'Gantry having adjustable side supports'
[patent_app_type] => 1
[patent_app_number] => 6/239318
[patent_app_country] => US
[patent_app_date] => 1981-03-02
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 10
[patent_no_of_words] => 3535
[patent_no_of_claims] => 6
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 254
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/381/04381839.pdf
[firstpage_image] =>[orig_patent_app_number] => 239318
[rel_patent_id] =>[rel_patent_doc_number] =>) 06/239318 | Gantry having adjustable side supports | Mar 1, 1981 | Issued |
Array
(
[id] => 2005945
[patent_doc_number] => 04398852
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1983-08-16
[patent_title] => 'Process and apparatus for adding and removing particles from pressurized reactors'
[patent_app_type] => 1
[patent_app_number] => 6/235195
[patent_app_country] => US
[patent_app_date] => 1981-02-17
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 3
[patent_no_of_words] => 3664
[patent_no_of_claims] => 7
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 130
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/398/04398852.pdf
[firstpage_image] =>[orig_patent_app_number] => 235195
[rel_patent_id] =>[rel_patent_doc_number] =>) 06/235195 | Process and apparatus for adding and removing particles from pressurized reactors | Feb 16, 1981 | Issued |
Array
(
[id] => 1994743
[patent_doc_number] => 04373838
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1983-02-15
[patent_title] => 'Vacuum sewage transport system'
[patent_app_type] => 1
[patent_app_number] => 6/234110
[patent_app_country] => US
[patent_app_date] => 1981-02-13
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 3
[patent_no_of_words] => 4467
[patent_no_of_claims] => 14
[patent_no_of_ind_claims] => 3
[patent_words_short_claim] => 214
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/373/04373838.pdf
[firstpage_image] =>[orig_patent_app_number] => 234110
[rel_patent_id] =>[rel_patent_doc_number] =>) 06/234110 | Vacuum sewage transport system | Feb 12, 1981 | Issued |
Array
(
[id] => 1951011
[patent_doc_number] => 04354793
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1982-10-19
[patent_title] => 'Reel locking mechanism for a reel loader apparatus'
[patent_app_type] => 1
[patent_app_number] => 6/232257
[patent_app_country] => US
[patent_app_date] => 1981-02-06
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 6
[patent_no_of_words] => 2211
[patent_no_of_claims] => 2
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 363
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/354/04354793.pdf
[firstpage_image] =>[orig_patent_app_number] => 232257
[rel_patent_id] =>[rel_patent_doc_number] =>) 06/232257 | Reel locking mechanism for a reel loader apparatus | Feb 5, 1981 | Issued |
Array
(
[id] => 2072692
[patent_doc_number] => 04460306
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1984-07-17
[patent_title] => 'Wheel dolly'
[patent_app_type] => 1
[patent_app_number] => 6/222675
[patent_app_country] => US
[patent_app_date] => 1981-01-05
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 4
[patent_no_of_words] => 1846
[patent_no_of_claims] => 5
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 93
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/460/04460306.pdf
[firstpage_image] =>[orig_patent_app_number] => 222675
[rel_patent_id] =>[rel_patent_doc_number] =>) 06/222675 | Wheel dolly | Jan 4, 1981 | Issued |
Array
(
[id] => 2018253
[patent_doc_number] => 04394914
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1983-07-26
[patent_title] => 'Telescopic cranes'
[patent_app_type] => 1
[patent_app_number] => 6/218175
[patent_app_country] => US
[patent_app_date] => 1980-12-19
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 6
[patent_figures_cnt] => 8
[patent_no_of_words] => 1690
[patent_no_of_claims] => 3
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 193
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/394/04394914.pdf
[firstpage_image] =>[orig_patent_app_number] => 218175
[rel_patent_id] =>[rel_patent_doc_number] =>) 06/218175 | Telescopic cranes | Dec 18, 1980 | Issued |
Array
(
[id] => 2018453
[patent_doc_number] => 04370087
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1983-01-25
[patent_title] => 'Dumping apparatus for particulate-bearing container'
[patent_app_type] => 1
[patent_app_number] => 6/206581
[patent_app_country] => US
[patent_app_date] => 1980-11-13
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 3
[patent_figures_cnt] => 4
[patent_no_of_words] => 1854
[patent_no_of_claims] => 5
[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/04/370/04370087.pdf
[firstpage_image] =>[orig_patent_app_number] => 206581
[rel_patent_id] =>[rel_patent_doc_number] =>) 06/206581 | Dumping apparatus for particulate-bearing container | Nov 12, 1980 | Issued |
Array
(
[id] => 1957351
[patent_doc_number] => 04339222
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1982-07-13
[patent_title] => 'Door locking mechanism for hopper car doors'
[patent_app_type] => 1
[patent_app_number] => 6/202533
[patent_app_country] => US
[patent_app_date] => 1980-10-31
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 3
[patent_figures_cnt] => 7
[patent_no_of_words] => 1987
[patent_no_of_claims] => 10
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 181
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/339/04339222.pdf
[firstpage_image] =>[orig_patent_app_number] => 202533
[rel_patent_id] =>[rel_patent_doc_number] =>) 06/202533 | Door locking mechanism for hopper car doors | Oct 30, 1980 | Issued |
Array
(
[id] => 1979665
[patent_doc_number] => 04359307
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1982-11-16
[patent_title] => 'Vehicle for transporting compressible materials'
[patent_app_type] => 1
[patent_app_number] => 6/197301
[patent_app_country] => US
[patent_app_date] => 1980-10-15
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 5
[patent_figures_cnt] => 12
[patent_no_of_words] => 3481
[patent_no_of_claims] => 6
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[patent_words_short_claim] => 282
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[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/359/04359307.pdf
[firstpage_image] =>[orig_patent_app_number] => 197301
[rel_patent_id] =>[rel_patent_doc_number] =>) 06/197301 | Vehicle for transporting compressible materials | Oct 14, 1980 | Issued |
Array
(
[id] => 1963791
[patent_doc_number] => 04330232
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1982-05-18
[patent_title] => 'Grain bin and truck loading and unloading system'
[patent_app_type] => 1
[patent_app_number] => 6/191610
[patent_app_country] => US
[patent_app_date] => 1980-09-29
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 3
[patent_figures_cnt] => 5
[patent_no_of_words] => 2581
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[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/330/04330232.pdf
[firstpage_image] =>[orig_patent_app_number] => 191610
[rel_patent_id] =>[rel_patent_doc_number] =>) 06/191610 | Grain bin and truck loading and unloading system | Sep 28, 1980 | Issued |
Array
(
[id] => 1981361
[patent_doc_number] => 04363590
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1982-12-14
[patent_title] => 'Power operated boat loading/unloading marine trailer'
[patent_app_type] => 1
[patent_app_number] => 6/190997
[patent_app_country] => US
[patent_app_date] => 1980-09-26
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 8
[patent_no_of_words] => 3041
[patent_no_of_claims] => 13
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[patent_words_short_claim] => 136
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/363/04363590.pdf
[firstpage_image] =>[orig_patent_app_number] => 190997
[rel_patent_id] =>[rel_patent_doc_number] =>) 06/190997 | Power operated boat loading/unloading marine trailer | Sep 25, 1980 | Issued |