Search

David H. Malzahn

Examiner (ID: 17134, Phone: (571)272-3727 , Office: P/2182 )

Most Active Art Unit
2193
Art Unit(s)
2193, 2306, 2301, 2787, 2182, 2121, 2302, 2124, 2183, 2307, 2786
Total Applications
3174
Issued Applications
2743
Pending Applications
60
Abandoned Applications
371

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 1978585 [patent_doc_number] => 04361875 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-11-30 [patent_title] => 'Multiple tone detector and locator' [patent_app_type] => 1 [patent_app_number] => 6/162261 [patent_app_country] => US [patent_app_date] => 1980-06-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 16 [patent_no_of_words] => 7998 [patent_no_of_claims] => 32 [patent_no_of_ind_claims] => 15 [patent_words_short_claim] => 37 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/361/04361875.pdf [firstpage_image] =>[orig_patent_app_number] => 162261 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/162261
Multiple tone detector and locator Jun 22, 1980 Issued
Array ( [id] => 1977865 [patent_doc_number] => 04348735 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-09-07 [patent_title] => 'Cyclotomic tone detector and locator' [patent_app_type] => 1 [patent_app_number] => 6/162262 [patent_app_country] => US [patent_app_date] => 1980-06-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 16 [patent_no_of_words] => 7746 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 233 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/348/04348735.pdf [firstpage_image] =>[orig_patent_app_number] => 162262 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/162262
Cyclotomic tone detector and locator Jun 22, 1980 Issued
Array ( [id] => 1958597 [patent_doc_number] => 04333156 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-06-01 [patent_title] => 'Broadband cyclotomic tone detector' [patent_app_type] => 1 [patent_app_number] => 6/162256 [patent_app_country] => US [patent_app_date] => 1980-06-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 16 [patent_no_of_words] => 7761 [patent_no_of_claims] => 31 [patent_no_of_ind_claims] => 11 [patent_words_short_claim] => 38 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/333/04333156.pdf [firstpage_image] =>[orig_patent_app_number] => 162256 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/162256
Broadband cyclotomic tone detector Jun 22, 1980 Issued
Array ( [id] => 2053574 [patent_doc_number] => 04390779 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-06-28 [patent_title] => 'Method and apparatus for detecting articles moving in a continuous stream' [patent_app_type] => 1 [patent_app_number] => 6/162272 [patent_app_country] => US [patent_app_date] => 1980-06-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 7 [patent_no_of_words] => 1473 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 41 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/390/04390779.pdf [firstpage_image] =>[orig_patent_app_number] => 162272 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/162272
Method and apparatus for detecting articles moving in a continuous stream Jun 22, 1980 Issued
Array ( [id] => 1948088 [patent_doc_number] => 04336592 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-06-22 [patent_title] => 'Antiskid control system for brakes which exhibit large changes in lining friction coefficient' [patent_app_type] => 1 [patent_app_number] => 6/161812 [patent_app_country] => US [patent_app_date] => 1980-06-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 2223 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 96 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/336/04336592.pdf [firstpage_image] =>[orig_patent_app_number] => 161812 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/161812
Antiskid control system for brakes which exhibit large changes in lining friction coefficient Jun 22, 1980 Issued
Array ( [id] => 1955993 [patent_doc_number] => 04326261 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-04-20 [patent_title] => 'Single tone detector' [patent_app_type] => 1 [patent_app_number] => 6/162260 [patent_app_country] => US [patent_app_date] => 1980-06-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 4940 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/326/04326261.pdf [firstpage_image] =>[orig_patent_app_number] => 162260 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/162260
Single tone detector Jun 22, 1980 Issued
Array ( [id] => 1886496 [patent_doc_number] => 04297744 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1981-10-27 [patent_title] => 'Process and device for multiplying a stochastic value by a coefficient greater than the unit' [patent_app_type] => 1 [patent_app_number] => 6/161009 [patent_app_country] => US [patent_app_date] => 1980-06-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 2782 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 138 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/297/04297744.pdf [firstpage_image] =>[orig_patent_app_number] => 161009 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/161009
Process and device for multiplying a stochastic value by a coefficient greater than the unit Jun 18, 1980 Issued
06/159036 ADAPTIVE FIXED POINT ARITHMETIC CONTROLLER APPARATUS AND METHOD Jun 12, 1980 Issued
Array ( [id] => 1952046 [patent_doc_number] => 04313173 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-01-26 [patent_title] => 'Linear interpolator' [patent_app_type] => 1 [patent_app_number] => 6/158246 [patent_app_country] => US [patent_app_date] => 1980-06-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 2589 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/313/04313173.pdf [firstpage_image] =>[orig_patent_app_number] => 158246 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/158246
Linear interpolator Jun 9, 1980 Issued
Array ( [id] => 1998983 [patent_doc_number] => 04384195 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-05-17 [patent_title] => 'Edge-responsive apparatus for counting conveyor-transported articles' [patent_app_type] => 1 [patent_app_number] => 6/157657 [patent_app_country] => US [patent_app_date] => 1980-06-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 4995 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 264 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/384/04384195.pdf [firstpage_image] =>[orig_patent_app_number] => 157657 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/157657
Edge-responsive apparatus for counting conveyor-transported articles Jun 8, 1980 Issued
Array ( [id] => 2024461 [patent_doc_number] => 04370727 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-01-25 [patent_title] => 'Pocket calculator for family planning including a thermometric probe' [patent_app_type] => 1 [patent_app_number] => 6/156446 [patent_app_country] => US [patent_app_date] => 1980-06-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 10 [patent_no_of_words] => 4662 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 127 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/370/04370727.pdf [firstpage_image] =>[orig_patent_app_number] => 156446 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/156446
Pocket calculator for family planning including a thermometric probe Jun 3, 1980 Issued
Array ( [id] => 2035237 [patent_doc_number] => 04367535 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-01-04 [patent_title] => 'Calculator for cross summing a plurality of operands' [patent_app_type] => 1 [patent_app_number] => 6/154867 [patent_app_country] => US [patent_app_date] => 1980-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 1632 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 215 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/367/04367535.pdf [firstpage_image] =>[orig_patent_app_number] => 154867 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/154867
Calculator for cross summing a plurality of operands May 29, 1980 Issued
Array ( [id] => 2049440 [patent_doc_number] => 04379336 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-04-05 [patent_title] => 'Modular calculator with separable keyboard and display modules' [patent_app_type] => 1 [patent_app_number] => 6/154866 [patent_app_country] => US [patent_app_date] => 1980-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 13 [patent_no_of_words] => 7878 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 272 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/379/04379336.pdf [firstpage_image] =>[orig_patent_app_number] => 154866 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/154866
Modular calculator with separable keyboard and display modules May 29, 1980 Issued
Array ( [id] => 1988325 [patent_doc_number] => 04346451 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-08-24 [patent_title] => 'Dual moduli exponent transform type high speed multiplication system' [patent_app_type] => 1 [patent_app_number] => 6/152681 [patent_app_country] => US [patent_app_date] => 1980-05-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 13243 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 209 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/346/04346451.pdf [firstpage_image] =>[orig_patent_app_number] => 152681 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/152681
Dual moduli exponent transform type high speed multiplication system May 22, 1980 Issued
Array ( [id] => 1982027 [patent_doc_number] => 04328541 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-05-04 [patent_title] => 'Fail-safe digital comparator' [patent_app_type] => 1 [patent_app_number] => 6/152884 [patent_app_country] => US [patent_app_date] => 1980-05-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 3651 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 189 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/328/04328541.pdf [firstpage_image] =>[orig_patent_app_number] => 152884 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/152884
Fail-safe digital comparator May 22, 1980 Issued
Array ( [id] => 2037616 [patent_doc_number] => 04385228 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-05-24 [patent_title] => 'Display device for tape recorder with automatic shut off and reset inhibiting' [patent_app_type] => 1 [patent_app_number] => 6/151471 [patent_app_country] => US [patent_app_date] => 1980-05-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 9 [patent_no_of_words] => 2744 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 236 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/385/04385228.pdf [firstpage_image] =>[orig_patent_app_number] => 151471 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/151471
Display device for tape recorder with automatic shut off and reset inhibiting May 18, 1980 Issued
Array ( [id] => 1975921 [patent_doc_number] => 04354267 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-10-12 [patent_title] => 'Data transmission system utilizing loop transmission lines between terminal units' [patent_app_type] => 1 [patent_app_number] => 6/149632 [patent_app_country] => US [patent_app_date] => 1980-05-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 5570 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 227 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/354/04354267.pdf [firstpage_image] =>[orig_patent_app_number] => 149632 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/149632
Data transmission system utilizing loop transmission lines between terminal units May 13, 1980 Issued
Array ( [id] => 1939775 [patent_doc_number] => 04322810 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-03-30 [patent_title] => 'Digital filters with reduced multiplier circuitry' [patent_app_type] => 1 [patent_app_number] => 6/148092 [patent_app_country] => US [patent_app_date] => 1980-05-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 3676 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 312 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/322/04322810.pdf [firstpage_image] =>[orig_patent_app_number] => 148092 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/148092
Digital filters with reduced multiplier circuitry May 8, 1980 Issued
Array ( [id] => 1968469 [patent_doc_number] => 04320464 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-03-16 [patent_title] => 'Binary divider with carry-save adders' [patent_app_type] => 1 [patent_app_number] => 6/146549 [patent_app_country] => US [patent_app_date] => 1980-05-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3429 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 182 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/320/04320464.pdf [firstpage_image] =>[orig_patent_app_number] => 146549 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/146549
Binary divider with carry-save adders May 4, 1980 Issued
Array ( [id] => 1937269 [patent_doc_number] => 04325129 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-04-13 [patent_title] => 'Non-linear logic module for increasing complexity of bit sequences' [patent_app_type] => 1 [patent_app_number] => 6/145418 [patent_app_country] => US [patent_app_date] => 1980-05-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2133 [patent_no_of_claims] => 2 [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/04/325/04325129.pdf [firstpage_image] =>[orig_patent_app_number] => 145418 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/145418
Non-linear logic module for increasing complexity of bit sequences Apr 30, 1980 Issued
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