
Evan H. Langdon
Examiner (ID: 16978)
| Most Active Art Unit | 3654 |
| Art Unit(s) | 3654 |
| Total Applications | 586 |
| Issued Applications | 403 |
| Pending Applications | 5 |
| Abandoned Applications | 178 |
Applications
| Application number | Title of the application | Filing Date | Status |
|---|---|---|---|
Array
(
[id] => 2883459
[patent_doc_number] => 05238662
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1993-08-24
[patent_title] => 'Processes for recovering precious metals'
[patent_app_type] => 1
[patent_app_number] => 7/880876
[patent_app_country] => US
[patent_app_date] => 1992-05-11
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 2
[patent_no_of_words] => 9099
[patent_no_of_claims] => 29
[patent_no_of_ind_claims] => 3
[patent_words_short_claim] => 92
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/238/05238662.pdf
[firstpage_image] =>[orig_patent_app_number] => 880876
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/880876 | Processes for recovering precious metals | May 10, 1992 | Issued |
Array
(
[id] => 2982645
[patent_doc_number] => 05211933
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1993-05-18
[patent_title] => 'Method for preparation of LiCoO.sub.2 intercalation compound for use in secondary lithium batteries'
[patent_app_type] => 1
[patent_app_number] => 7/876880
[patent_app_country] => US
[patent_app_date] => 1992-04-30
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 3
[patent_figures_cnt] => 4
[patent_no_of_words] => 2065
[patent_no_of_claims] => 4
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 114
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/211/05211933.pdf
[firstpage_image] =>[orig_patent_app_number] => 876880
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/876880 | Method for preparation of LiCoO.sub.2 intercalation compound for use in secondary lithium batteries | Apr 29, 1992 | Issued |
| 07/875340 | PROCESS FOR LEACHING GOLD AND SILVER | Apr 28, 1992 | Abandoned |
Array
(
[id] => 2914992
[patent_doc_number] => 05234679
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1993-08-10
[patent_title] => 'Method of refining tungsten hexafluoride containing molybdenum hexafluoride as an impurity'
[patent_app_type] => 1
[patent_app_number] => 7/866347
[patent_app_country] => US
[patent_app_date] => 1992-04-10
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 1940
[patent_no_of_claims] => 1
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 107
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/234/05234679.pdf
[firstpage_image] =>[orig_patent_app_number] => 866347
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/866347 | Method of refining tungsten hexafluoride containing molybdenum hexafluoride as an impurity | Apr 9, 1992 | Issued |
Array
(
[id] => 2886828
[patent_doc_number] => 05209911
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1993-05-11
[patent_title] => 'Method of making metal stannates'
[patent_app_type] => 1
[patent_app_number] => 7/778192
[patent_app_country] => US
[patent_app_date] => 1992-02-27
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 1909
[patent_no_of_claims] => 8
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 63
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/209/05209911.pdf
[firstpage_image] =>[orig_patent_app_number] => 778192
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/778192 | Method of making metal stannates | Feb 26, 1992 | Issued |
Array
(
[id] => 2978723
[patent_doc_number] => 05250274
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1993-10-05
[patent_title] => 'Process for the production of sodium dichromate'
[patent_app_type] => 1
[patent_app_number] => 7/824682
[patent_app_country] => US
[patent_app_date] => 1992-01-21
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 1
[patent_figures_cnt] => 1
[patent_no_of_words] => 3635
[patent_no_of_claims] => 3
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 187
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/250/05250274.pdf
[firstpage_image] =>[orig_patent_app_number] => 824682
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/824682 | Process for the production of sodium dichromate | Jan 20, 1992 | Issued |
Array
(
[id] => 2948437
[patent_doc_number] => 05221525
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1993-06-22
[patent_title] => 'Solvent extraction of gallium from acidic solutions containing phosphorus'
[patent_app_type] => 1
[patent_app_number] => 7/821764
[patent_app_country] => US
[patent_app_date] => 1992-01-14
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 1
[patent_figures_cnt] => 1
[patent_no_of_words] => 4471
[patent_no_of_claims] => 22
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 199
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/221/05221525.pdf
[firstpage_image] =>[orig_patent_app_number] => 821764
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/821764 | Solvent extraction of gallium from acidic solutions containing phosphorus | Jan 13, 1992 | Issued |
Array
(
[id] => 2948489
[patent_doc_number] => 05221528
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1993-06-22
[patent_title] => 'Process for the preparation of sodium chloride'
[patent_app_type] => 1
[patent_app_number] => 7/815090
[patent_app_country] => US
[patent_app_date] => 1991-12-27
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 3
[patent_figures_cnt] => 3
[patent_no_of_words] => 2702
[patent_no_of_claims] => 6
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 100
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/221/05221528.pdf
[firstpage_image] =>[orig_patent_app_number] => 815090
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/815090 | Process for the preparation of sodium chloride | Dec 26, 1991 | Issued |
Array
(
[id] => 2975673
[patent_doc_number] => 05250117
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1993-10-05
[patent_title] => 'Degreasing-cleaning method'
[patent_app_type] => 1
[patent_app_number] => 7/812992
[patent_app_country] => US
[patent_app_date] => 1991-12-24
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 5
[patent_figures_cnt] => 8
[patent_no_of_words] => 2536
[patent_no_of_claims] => 6
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 62
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/250/05250117.pdf
[firstpage_image] =>[orig_patent_app_number] => 812992
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/812992 | Degreasing-cleaning method | Dec 23, 1991 | Issued |
| 07/808043 | PROCESS OF HYDROLYZING GROUP IVB METAL CHLORIDES | Dec 11, 1991 | Abandoned |
Array
(
[id] => 2923028
[patent_doc_number] => 05186920
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1993-02-16
[patent_title] => 'Recovering TiO.sub.2 concentrates from TiO.sub.2 -containing substances'
[patent_app_type] => 1
[patent_app_number] => 7/795292
[patent_app_country] => US
[patent_app_date] => 1991-11-19
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 2369
[patent_no_of_claims] => 12
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 242
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/186/05186920.pdf
[firstpage_image] =>[orig_patent_app_number] => 795292
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/795292 | Recovering TiO.sub.2 concentrates from TiO.sub.2 -containing substances | Nov 18, 1991 | Issued |
| 07/791819 | METHOD AND SYSTEM FOR REMOVING CONTAMINANTS | Nov 12, 1991 | Abandoned |
Array
(
[id] => 2947648
[patent_doc_number] => 05230744
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1993-07-27
[patent_title] => 'Method for cleaning bag machinery'
[patent_app_type] => 1
[patent_app_number] => 7/788002
[patent_app_country] => US
[patent_app_date] => 1991-11-05
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 3
[patent_figures_cnt] => 4
[patent_no_of_words] => 4357
[patent_no_of_claims] => 11
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 76
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/230/05230744.pdf
[firstpage_image] =>[orig_patent_app_number] => 788002
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/788002 | Method for cleaning bag machinery | Nov 4, 1991 | Issued |
Array
(
[id] => 2884493
[patent_doc_number] => 05209785
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1993-05-11
[patent_title] => 'Non-chlorinated solvent dewax process'
[patent_app_type] => 1
[patent_app_number] => 7/785576
[patent_app_country] => US
[patent_app_date] => 1991-10-30
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 2545
[patent_no_of_claims] => 4
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 110
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/209/05209785.pdf
[firstpage_image] =>[orig_patent_app_number] => 785576
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/785576 | Non-chlorinated solvent dewax process | Oct 29, 1991 | Issued |
Array
(
[id] => 2966614
[patent_doc_number] => 05225000
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1993-07-06
[patent_title] => 'Method for cleaning closed spaces with ultraviolet rays'
[patent_app_type] => 1
[patent_app_number] => 7/784512
[patent_app_country] => US
[patent_app_date] => 1991-10-29
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 1
[patent_figures_cnt] => 2
[patent_no_of_words] => 3546
[patent_no_of_claims] => 1
[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/05/225/05225000.pdf
[firstpage_image] =>[orig_patent_app_number] => 784512
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/784512 | Method for cleaning closed spaces with ultraviolet rays | Oct 28, 1991 | Issued |
Array
(
[id] => 2970715
[patent_doc_number] => 05207996
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1993-05-04
[patent_title] => 'Acid leaching of copper ore heap with fluoroaliphatic surfactant'
[patent_app_type] => 1
[patent_app_number] => 7/774201
[patent_app_country] => US
[patent_app_date] => 1991-10-10
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 6428
[patent_no_of_claims] => 20
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 127
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/207/05207996.pdf
[firstpage_image] =>[orig_patent_app_number] => 774201
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/774201 | Acid leaching of copper ore heap with fluoroaliphatic surfactant | Oct 9, 1991 | Issued |
Array
(
[id] => 2928256
[patent_doc_number] => 05196178
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1993-03-23
[patent_title] => 'Method of producing dustfree silver nitrate'
[patent_app_type] => 1
[patent_app_number] => 7/771552
[patent_app_country] => US
[patent_app_date] => 1991-10-08
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 659
[patent_no_of_claims] => 6
[patent_no_of_ind_claims] => 3
[patent_words_short_claim] => 78
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/196/05196178.pdf
[firstpage_image] =>[orig_patent_app_number] => 771552
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/771552 | Method of producing dustfree silver nitrate | Oct 7, 1991 | Issued |
Array
(
[id] => 2819378
[patent_doc_number] => 05169610
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1992-12-08
[patent_title] => 'Method for the purification of rare earth oxysulfide'
[patent_app_type] => 1
[patent_app_number] => 7/772665
[patent_app_country] => US
[patent_app_date] => 1991-10-07
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 1
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[patent_no_of_words] => 1552
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[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/169/05169610.pdf
[firstpage_image] =>[orig_patent_app_number] => 772665
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/772665 | Method for the purification of rare earth oxysulfide | Oct 6, 1991 | Issued |
Array
(
[id] => 2903365
[patent_doc_number] => 05236513
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1993-08-17
[patent_title] => 'Process for sucking out and drying the cavities of coated microtiter plates'
[patent_app_type] => 1
[patent_app_number] => 7/769712
[patent_app_country] => US
[patent_app_date] => 1991-10-02
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 1
[patent_figures_cnt] => 1
[patent_no_of_words] => 714
[patent_no_of_claims] => 2
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 105
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/236/05236513.pdf
[firstpage_image] =>[orig_patent_app_number] => 769712
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/769712 | Process for sucking out and drying the cavities of coated microtiter plates | Oct 1, 1991 | Issued |
Array
(
[id] => 2905917
[patent_doc_number] => 05227143
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1993-07-13
[patent_title] => 'Process for the removal of salts from aluminum dross'
[patent_app_type] => 1
[patent_app_number] => 7/766035
[patent_app_country] => US
[patent_app_date] => 1991-09-26
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 1
[patent_figures_cnt] => 1
[patent_no_of_words] => 2999
[patent_no_of_claims] => 20
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[patent_maintenance] => 1
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[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/227/05227143.pdf
[firstpage_image] =>[orig_patent_app_number] => 766035
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/766035 | Process for the removal of salts from aluminum dross | Sep 25, 1991 | Issued |