Search

David Lam

Examiner (ID: 17065, Phone: (571)272-1782 , Office: P/2825 )

Most Active Art Unit
2827
Art Unit(s)
2818, 2827, 2825
Total Applications
2102
Issued Applications
2016
Pending Applications
28
Abandoned Applications
60

Applications

Application numberTitle of the applicationFiling DateStatus
06/272210 ELECTRODE FOR MEASUREMENT OF ION ACTIVITY Jun 9, 1981 Abandoned
Array ( [id] => 2150130 [patent_doc_number] => 04549948 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-10-29 [patent_title] => 'Sacrificial anode composition' [patent_app_type] => 1 [patent_app_number] => 6/271490 [patent_app_country] => US [patent_app_date] => 1981-06-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 2404 [patent_no_of_claims] => 5 [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/04/549/04549948.pdf [firstpage_image] =>[orig_patent_app_number] => 271490 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/271490
Sacrificial anode composition Jun 7, 1981 Issued
Array ( [id] => 2004053 [patent_doc_number] => 04407711 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-10-04 [patent_title] => 'Corrosion protection system for hot water tanks' [patent_app_type] => 1 [patent_app_number] => 6/270945 [patent_app_country] => US [patent_app_date] => 1981-06-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 2580 [patent_no_of_claims] => 2 [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/04/407/04407711.pdf [firstpage_image] =>[orig_patent_app_number] => 270945 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/270945
Corrosion protection system for hot water tanks Jun 4, 1981 Issued
Array ( [id] => 2019522 [patent_doc_number] => 04370207 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-01-25 [patent_title] => 'Process of electrolytically producing oxyacids of chlorine' [patent_app_type] => 1 [patent_app_number] => 6/268421 [patent_app_country] => US [patent_app_date] => 1981-05-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 1891 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 178 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/370/04370207.pdf [firstpage_image] =>[orig_patent_app_number] => 268421 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/268421
Process of electrolytically producing oxyacids of chlorine May 28, 1981 Issued
Array ( [id] => 2013532 [patent_doc_number] => 04376027 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-03-08 [patent_title] => 'Portable electrolytic testing device for metals' [patent_app_type] => 1 [patent_app_number] => 6/267545 [patent_app_country] => US [patent_app_date] => 1981-05-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 6 [patent_no_of_words] => 2391 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 180 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/376/04376027.pdf [firstpage_image] =>[orig_patent_app_number] => 267545 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/267545
Portable electrolytic testing device for metals May 26, 1981 Issued
Array ( [id] => 2019580 [patent_doc_number] => 04370213 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-01-25 [patent_title] => 'Oxygen sensor' [patent_app_type] => 1 [patent_app_number] => 6/264240 [patent_app_country] => US [patent_app_date] => 1981-05-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 1707 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 164 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/370/04370213.pdf [firstpage_image] =>[orig_patent_app_number] => 264240 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/264240
Oxygen sensor May 17, 1981 Issued
06/262091 POLAROGRAPHIC OXYGEN SENSOR May 10, 1981 Abandoned
06/260258 ELECTROCHEMICAL OXYGEN SENSOR, PARTICULARLY FOR ANALYSIS OF COMBUSTION GASES FROM INTERNAL COMBUSTION ENGINES, AND METHOD OF MANUFACTURE May 3, 1981 Abandoned
Array ( [id] => 2190391 [patent_doc_number] => RE031916 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-06-18 [patent_title] => 'Electrochemical detection cell' [patent_app_type] => 2 [patent_app_number] => 6/258752 [patent_app_country] => US [patent_app_date] => 1981-04-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 8 [patent_no_of_words] => 8263 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 270 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/RE/031/RE031916.pdf [firstpage_image] =>[orig_patent_app_number] => 258752 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/258752
Electrochemical detection cell Apr 28, 1981 Issued
Array ( [id] => 2190374 [patent_doc_number] => RE031915 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-06-18 [patent_title] => 'Gas detecting and measuring device' [patent_app_type] => 2 [patent_app_number] => 6/258753 [patent_app_country] => US [patent_app_date] => 1981-04-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 7863 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 380 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/RE/031/RE031915.pdf [firstpage_image] =>[orig_patent_app_number] => 258753 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/258753
Gas detecting and measuring device Apr 28, 1981 Issued
Array ( [id] => 2190361 [patent_doc_number] => RE031914 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-06-18 [patent_title] => 'Electrochemical gas detection method' [patent_app_type] => 2 [patent_app_number] => 6/258879 [patent_app_country] => US [patent_app_date] => 1981-04-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 8 [patent_no_of_words] => 8268 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 371 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/RE/031/RE031914.pdf [firstpage_image] =>[orig_patent_app_number] => 258879 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/258879
Electrochemical gas detection method Apr 28, 1981 Issued
Array ( [id] => 2058081 [patent_doc_number] => 04432856 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-02-21 [patent_title] => 'Apparatus for manufacturing chlorine dioxide' [patent_app_type] => 1 [patent_app_number] => 6/258545 [patent_app_country] => US [patent_app_date] => 1981-04-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 5016 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 476 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/432/04432856.pdf [firstpage_image] =>[orig_patent_app_number] => 258545 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/258545
Apparatus for manufacturing chlorine dioxide Apr 27, 1981 Issued
Array ( [id] => 2030131 [patent_doc_number] => 04396466 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-08-02 [patent_title] => 'Absolute pressure sensor' [patent_app_type] => 1 [patent_app_number] => 6/258150 [patent_app_country] => US [patent_app_date] => 1981-04-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 2288 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 273 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/396/04396466.pdf [firstpage_image] =>[orig_patent_app_number] => 258150 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/258150
Absolute pressure sensor Apr 26, 1981 Issued
Array ( [id] => 1994767 [patent_doc_number] => 04381224 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-04-26 [patent_title] => 'Step function lean burn oxygen sensor' [patent_app_type] => 1 [patent_app_number] => 6/258185 [patent_app_country] => US [patent_app_date] => 1981-04-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 6 [patent_no_of_words] => 3574 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 123 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/381/04381224.pdf [firstpage_image] =>[orig_patent_app_number] => 258185 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/258185
Step function lean burn oxygen sensor Apr 26, 1981 Issued
Array ( [id] => 2095546 [patent_doc_number] => 04474648 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-10-02 [patent_title] => 'Gas sensor' [patent_app_type] => 1 [patent_app_number] => 6/256283 [patent_app_country] => US [patent_app_date] => 1981-04-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 4054 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/474/04474648.pdf [firstpage_image] =>[orig_patent_app_number] => 256283 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/256283
Gas sensor Apr 22, 1981 Issued
06/256968 METHOD AND ELECTROCATALYST FOR MAKING CHLORINE DIOXIDE Apr 22, 1981 Abandoned
Array ( [id] => 1996177 [patent_doc_number] => 04383900 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-05-17 [patent_title] => 'Apparatus and method for measuring the IR drop free cathodic protection potential created by a rectifier and controlling rectifier operation to achieve a desired level thereof' [patent_app_type] => 1 [patent_app_number] => 6/252576 [patent_app_country] => US [patent_app_date] => 1981-04-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 3638 [patent_no_of_claims] => 29 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 89 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/383/04383900.pdf [firstpage_image] =>[orig_patent_app_number] => 252576 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/252576
Apparatus and method for measuring the IR drop free cathodic protection potential created by a rectifier and controlling rectifier operation to achieve a desired level thereof Apr 8, 1981 Issued
Array ( [id] => 2021893 [patent_doc_number] => 04395312 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-07-26 [patent_title] => 'Method and apparatus for the analysis of solution adjacent an electrode' [patent_app_type] => 1 [patent_app_number] => 6/250168 [patent_app_country] => US [patent_app_date] => 1981-04-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 14 [patent_no_of_words] => 8389 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 118 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/395/04395312.pdf [firstpage_image] =>[orig_patent_app_number] => 250168 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/250168
Method and apparatus for the analysis of solution adjacent an electrode Apr 1, 1981 Issued
Array ( [id] => 2046841 [patent_doc_number] => 04379041 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-04-05 [patent_title] => 'Polymeric membrane selective to calcium (II) ions' [patent_app_type] => 1 [patent_app_number] => 6/250019 [patent_app_country] => US [patent_app_date] => 1981-04-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1558 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 123 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/379/04379041.pdf [firstpage_image] =>[orig_patent_app_number] => 250019 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/250019
Polymeric membrane selective to calcium (II) ions Mar 31, 1981 Issued
06/249373 POTENTIOMETRIC ELECTRODE DETECTOR Mar 30, 1981 Abandoned
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