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] => 2089562 [patent_doc_number] => 04435773 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-03-06 [patent_title] => 'Receiver for effecting synchronous demodulation' [patent_app_type] => 1 [patent_app_number] => 6/236823 [patent_app_country] => US [patent_app_date] => 1981-02-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 1516 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 162 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/435/04435773.pdf [firstpage_image] =>[orig_patent_app_number] => 236823 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/236823
Receiver for effecting synchronous demodulation Feb 19, 1981 Issued
Array ( [id] => 1998590 [patent_doc_number] => 04380070 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-04-12 [patent_title] => 'Automatic circuit identifier' [patent_app_type] => 1 [patent_app_number] => 6/234686 [patent_app_country] => US [patent_app_date] => 1981-02-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 10822 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 135 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/380/04380070.pdf [firstpage_image] =>[orig_patent_app_number] => 234686 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/234686
Automatic circuit identifier Feb 16, 1981 Issued
Array ( [id] => 1981026 [patent_doc_number] => 04352161 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-09-28 [patent_title] => 'Electronic calculator capable of dealing with variables' [patent_app_type] => 1 [patent_app_number] => 6/233883 [patent_app_country] => US [patent_app_date] => 1981-02-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 10 [patent_no_of_words] => 2469 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 197 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/352/04352161.pdf [firstpage_image] =>[orig_patent_app_number] => 233883 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/233883
Electronic calculator capable of dealing with variables Feb 11, 1981 Issued
06/233506 SYSTEM FOR ENTERING INFORMATION PRIOR TO EXECUTING PROGRAMMED CALCULATIONS IN PROGRAMMABLE CALCULATORS Feb 10, 1981 Abandoned
Array ( [id] => 2012026 [patent_doc_number] => 04399516 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-08-16 [patent_title] => 'Stored-program control machine' [patent_app_type] => 1 [patent_app_number] => 6/233143 [patent_app_country] => US [patent_app_date] => 1981-02-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 10 [patent_no_of_words] => 4528 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 59 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/399/04399516.pdf [firstpage_image] =>[orig_patent_app_number] => 233143 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/233143
Stored-program control machine Feb 9, 1981 Issued
Array ( [id] => 2098679 [patent_doc_number] => 04456964 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-06-26 [patent_title] => 'Calculator including means for displaying alphanumeric prompting messages to the operator' [patent_app_type] => 1 [patent_app_number] => 6/232087 [patent_app_country] => US [patent_app_date] => 1981-02-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 13231 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 168 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/456/04456964.pdf [firstpage_image] =>[orig_patent_app_number] => 232087 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/232087
Calculator including means for displaying alphanumeric prompting messages to the operator Feb 5, 1981 Issued
Array ( [id] => 2041407 [patent_doc_number] => 04410960 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-10-18 [patent_title] => 'Sorting circuit for three or more inputs' [patent_app_type] => 1 [patent_app_number] => 6/232052 [patent_app_country] => US [patent_app_date] => 1981-02-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 21 [patent_no_of_words] => 12037 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 347 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/410/04410960.pdf [firstpage_image] =>[orig_patent_app_number] => 232052 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/232052
Sorting circuit for three or more inputs Feb 4, 1981 Issued
Array ( [id] => 2035010 [patent_doc_number] => 04396992 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-08-02 [patent_title] => 'Word processor' [patent_app_type] => 1 [patent_app_number] => 6/229989 [patent_app_country] => US [patent_app_date] => 1981-01-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 3162 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 157 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/396/04396992.pdf [firstpage_image] =>[orig_patent_app_number] => 229989 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/229989
Word processor Jan 29, 1981 Issued
Array ( [id] => 2049449 [patent_doc_number] => 04379337 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-04-05 [patent_title] => 'Metric computer' [patent_app_type] => 1 [patent_app_number] => 6/229318 [patent_app_country] => US [patent_app_date] => 1981-01-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 2060 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 401 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/379/04379337.pdf [firstpage_image] =>[orig_patent_app_number] => 229318 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/229318
Metric computer Jan 28, 1981 Issued
Array ( [id] => 2061655 [patent_doc_number] => 04393498 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-07-12 [patent_title] => 'Method and apparatus for testing systems that communicate over digital buses by transmitting and receiving signals in the form of standardized multi-bit binary encoded words' [patent_app_type] => 1 [patent_app_number] => 6/227371 [patent_app_country] => US [patent_app_date] => 1981-01-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 21 [patent_figures_cnt] => 30 [patent_no_of_words] => 15896 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 322 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/393/04393498.pdf [firstpage_image] =>[orig_patent_app_number] => 227371 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/227371
Method and apparatus for testing systems that communicate over digital buses by transmitting and receiving signals in the form of standardized multi-bit binary encoded words Jan 21, 1981 Issued
Array ( [id] => 2023662 [patent_doc_number] => 04373190 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-02-08 [patent_title] => 'Efficient, precompression, bandwidth-tolerant, digital pulse expander-compressor' [patent_app_type] => 1 [patent_app_number] => 6/227323 [patent_app_country] => US [patent_app_date] => 1981-01-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 3347 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 166 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/373/04373190.pdf [firstpage_image] =>[orig_patent_app_number] => 227323 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/227323
Efficient, precompression, bandwidth-tolerant, digital pulse expander-compressor Jan 21, 1981 Issued
Array ( [id] => 2009340 [patent_doc_number] => 04388719 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-06-14 [patent_title] => 'Dynamic signal generator' [patent_app_type] => 1 [patent_app_number] => 6/225673 [patent_app_country] => US [patent_app_date] => 1981-01-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 2298 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 20 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/388/04388719.pdf [firstpage_image] =>[orig_patent_app_number] => 225673 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/225673
Dynamic signal generator Jan 15, 1981 Issued
Array ( [id] => 2036664 [patent_doc_number] => 04423488 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-12-27 [patent_title] => 'Digital filter employing PROM for storing positive and negative impulse response values' [patent_app_type] => 1 [patent_app_number] => 6/223572 [patent_app_country] => US [patent_app_date] => 1981-01-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 3134 [patent_no_of_claims] => 7 [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/04/423/04423488.pdf [firstpage_image] =>[orig_patent_app_number] => 223572 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/223572
Digital filter employing PROM for storing positive and negative impulse response values Jan 8, 1981 Issued
Array ( [id] => 2034951 [patent_doc_number] => 04396985 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-08-02 [patent_title] => 'Electronic cash register system for food dispensing business' [patent_app_type] => 1 [patent_app_number] => 6/223765 [patent_app_country] => US [patent_app_date] => 1981-01-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 7373 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 287 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/396/04396985.pdf [firstpage_image] =>[orig_patent_app_number] => 223765 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/223765
Electronic cash register system for food dispensing business Jan 8, 1981 Issued
06/221595 PLA WITH TIME DIVISION MULTIPLEX FEATURE FOR IMPROVED DENSITY Dec 30, 1980 Abandoned
Array ( [id] => 2055464 [patent_doc_number] => 04390968 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-06-28 [patent_title] => 'Automated bank transaction security system' [patent_app_type] => 1 [patent_app_number] => 6/221674 [patent_app_country] => US [patent_app_date] => 1980-12-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 4757 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 354 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/390/04390968.pdf [firstpage_image] =>[orig_patent_app_number] => 221674 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/221674
Automated bank transaction security system Dec 29, 1980 Issued
Array ( [id] => 2033291 [patent_doc_number] => 04382285 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-05-03 [patent_title] => 'Filter for binary data with integral output amplitude multiplier' [patent_app_type] => 1 [patent_app_number] => 6/221188 [patent_app_country] => US [patent_app_date] => 1980-12-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 2933 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/382/04382285.pdf [firstpage_image] =>[orig_patent_app_number] => 221188 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/221188
Filter for binary data with integral output amplitude multiplier Dec 29, 1980 Issued
Array ( [id] => 2000356 [patent_doc_number] => 04384340 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-05-17 [patent_title] => 'Data processor having apparatus for controlling the selection of decimal digits of an operand when executing decimal arithmetic instructions' [patent_app_type] => 1 [patent_app_number] => 6/220220 [patent_app_country] => US [patent_app_date] => 1980-12-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 10 [patent_no_of_words] => 9993 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 195 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/384/04384340.pdf [firstpage_image] =>[orig_patent_app_number] => 220220 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/220220
Data processor having apparatus for controlling the selection of decimal digits of an operand when executing decimal arithmetic instructions Dec 23, 1980 Issued
Array ( [id] => 2055400 [patent_doc_number] => 04390961 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-06-28 [patent_title] => 'Data processor performing a decimal multiply operation using a read only memory' [patent_app_type] => 1 [patent_app_number] => 6/220218 [patent_app_country] => US [patent_app_date] => 1980-12-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 9301 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 245 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/390/04390961.pdf [firstpage_image] =>[orig_patent_app_number] => 220218 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/220218
Data processor performing a decimal multiply operation using a read only memory Dec 23, 1980 Issued
Array ( [id] => 2021398 [patent_doc_number] => 04371963 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-02-01 [patent_title] => 'Method and apparatus for detecting and correcting errors in a memory' [patent_app_type] => 1 [patent_app_number] => 6/220221 [patent_app_country] => US [patent_app_date] => 1980-12-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 18 [patent_no_of_words] => 8058 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 207 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/371/04371963.pdf [firstpage_image] =>[orig_patent_app_number] => 220221 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/220221
Method and apparatus for detecting and correcting errors in a memory Dec 23, 1980 Issued
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