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] => 2021922 [patent_doc_number] => 04400811 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-08-23 [patent_title] => 'Detecting accurrences of redundant digital codewords' [patent_app_type] => 1 [patent_app_number] => 6/252094 [patent_app_country] => US [patent_app_date] => 1981-04-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 2179 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/400/04400811.pdf [firstpage_image] =>[orig_patent_app_number] => 252094 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/252094
Detecting accurrences of redundant digital codewords Apr 7, 1981 Issued
Array ( [id] => 2048304 [patent_doc_number] => 04404677 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-09-13 [patent_title] => 'Detecting redundant digital codewords using a variable criterion' [patent_app_type] => 1 [patent_app_number] => 6/252093 [patent_app_country] => US [patent_app_date] => 1981-04-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 8 [patent_no_of_words] => 4655 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 73 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/404/04404677.pdf [firstpage_image] =>[orig_patent_app_number] => 252093 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/252093
Detecting redundant digital codewords using a variable criterion Apr 7, 1981 Issued
Array ( [id] => 1978574 [patent_doc_number] => 04361873 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-11-30 [patent_title] => 'Calculator with constant memory' [patent_app_type] => 1 [patent_app_number] => 6/252096 [patent_app_country] => US [patent_app_date] => 1981-04-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 18 [patent_no_of_words] => 4344 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 298 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/361/04361873.pdf [firstpage_image] =>[orig_patent_app_number] => 252096 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/252096
Calculator with constant memory Apr 7, 1981 Issued
Array ( [id] => 2056707 [patent_doc_number] => 04417319 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-11-22 [patent_title] => 'Electronic translator for providing additional sentences formed by directly-translated words' [patent_app_type] => 1 [patent_app_number] => 6/252144 [patent_app_country] => US [patent_app_date] => 1981-04-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 17 [patent_no_of_words] => 10312 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 121 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/417/04417319.pdf [firstpage_image] =>[orig_patent_app_number] => 252144 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/252144
Electronic translator for providing additional sentences formed by directly-translated words Apr 7, 1981 Issued
Array ( [id] => 2049680 [patent_doc_number] => 04405991 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-09-20 [patent_title] => 'Kitchen calculator' [patent_app_type] => 1 [patent_app_number] => 6/251754 [patent_app_country] => US [patent_app_date] => 1981-04-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 12 [patent_no_of_words] => 2108 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/405/04405991.pdf [firstpage_image] =>[orig_patent_app_number] => 251754 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/251754
Kitchen calculator Apr 6, 1981 Issued
Array ( [id] => 2041368 [patent_doc_number] => 04410956 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-10-18 [patent_title] => 'Exponential operation device' [patent_app_type] => 1 [patent_app_number] => 6/249187 [patent_app_country] => US [patent_app_date] => 1981-03-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 6278 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 48 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/410/04410956.pdf [firstpage_image] =>[orig_patent_app_number] => 249187 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/249187
Exponential operation device Mar 29, 1981 Issued
Array ( [id] => 2041360 [patent_doc_number] => 04410955 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-10-18 [patent_title] => 'Method and apparatus for digital shaping of a digital data stream' [patent_app_type] => 1 [patent_app_number] => 6/249571 [patent_app_country] => US [patent_app_date] => 1981-03-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 6579 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 28 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/410/04410955.pdf [firstpage_image] =>[orig_patent_app_number] => 249571 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/249571
Method and apparatus for digital shaping of a digital data stream Mar 29, 1981 Issued
Array ( [id] => 2061187 [patent_doc_number] => 04393457 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-07-12 [patent_title] => 'Method and apparatus for sequencing addresses of a fast Fourier transform array' [patent_app_type] => 1 [patent_app_number] => 6/247676 [patent_app_country] => US [patent_app_date] => 1981-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 5530 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 153 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/393/04393457.pdf [firstpage_image] =>[orig_patent_app_number] => 247676 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/247676
Method and apparatus for sequencing addresses of a fast Fourier transform array Mar 25, 1981 Issued
Array ( [id] => 2061312 [patent_doc_number] => 04393468 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-07-12 [patent_title] => 'Bit slice microprogrammable processor for signal processing applications' [patent_app_type] => 1 [patent_app_number] => 6/247675 [patent_app_country] => US [patent_app_date] => 1981-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 10 [patent_no_of_words] => 5011 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 176 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/393/04393468.pdf [firstpage_image] =>[orig_patent_app_number] => 247675 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/247675
Bit slice microprogrammable processor for signal processing applications Mar 25, 1981 Issued
Array ( [id] => 2012032 [patent_doc_number] => 04399517 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-08-16 [patent_title] => 'Multiple-input binary adder' [patent_app_type] => 1 [patent_app_number] => 6/245480 [patent_app_country] => US [patent_app_date] => 1981-03-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 16 [patent_no_of_words] => 4041 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/399/04399517.pdf [firstpage_image] =>[orig_patent_app_number] => 245480 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/245480
Multiple-input binary adder Mar 18, 1981 Issued
Array ( [id] => 2089574 [patent_doc_number] => 04435774 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-03-06 [patent_title] => 'Method of and arrangement for calculating the discrete Fourier transform by means of two circular convolutions' [patent_app_type] => 1 [patent_app_number] => 6/243228 [patent_app_country] => US [patent_app_date] => 1981-03-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 11 [patent_no_of_words] => 7221 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 408 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/435/04435774.pdf [firstpage_image] =>[orig_patent_app_number] => 243228 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/243228
Method of and arrangement for calculating the discrete Fourier transform by means of two circular convolutions Mar 12, 1981 Issued
Array ( [id] => 2108820 [patent_doc_number] => 04484301 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-11-20 [patent_title] => 'Array multiplier operating in one\'s complement format' [patent_app_type] => 1 [patent_app_number] => 6/242214 [patent_app_country] => US [patent_app_date] => 1981-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 12 [patent_no_of_words] => 7301 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 394 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/484/04484301.pdf [firstpage_image] =>[orig_patent_app_number] => 242214 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/242214
Array multiplier operating in one's complement format Mar 9, 1981 Issued
Array ( [id] => 2045032 [patent_doc_number] => 04418411 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-11-29 [patent_title] => 'Method and apparatus for generating an equipment reply signal for the automatic identification of objects and/or living beings' [patent_app_type] => 1 [patent_app_number] => 6/242177 [patent_app_country] => US [patent_app_date] => 1981-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 4956 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 260 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/418/04418411.pdf [firstpage_image] =>[orig_patent_app_number] => 242177 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/242177
Method and apparatus for generating an equipment reply signal for the automatic identification of objects and/or living beings Mar 9, 1981 Issued
Array ( [id] => 2081283 [patent_doc_number] => 04445216 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-04-24 [patent_title] => 'System for defeating erroneous correction in a digital signal reproducing apparatus' [patent_app_type] => 1 [patent_app_number] => 6/242293 [patent_app_country] => US [patent_app_date] => 1981-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 8 [patent_no_of_words] => 6945 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 757 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/445/04445216.pdf [firstpage_image] =>[orig_patent_app_number] => 242293 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/242293
System for defeating erroneous correction in a digital signal reproducing apparatus Mar 9, 1981 Issued
Array ( [id] => 2063796 [patent_doc_number] => 04409668 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-10-11 [patent_title] => 'Round-off apparatus for data processors' [patent_app_type] => 1 [patent_app_number] => 6/242142 [patent_app_country] => US [patent_app_date] => 1981-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 9 [patent_no_of_words] => 4065 [patent_no_of_claims] => 4 [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/04/409/04409668.pdf [firstpage_image] =>[orig_patent_app_number] => 242142 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/242142
Round-off apparatus for data processors Mar 8, 1981 Issued
Array ( [id] => 2069388 [patent_doc_number] => 04441160 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-04-03 [patent_title] => 'Point of sale terminal having prompting display' [patent_app_type] => 1 [patent_app_number] => 6/242054 [patent_app_country] => US [patent_app_date] => 1981-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 10 [patent_no_of_words] => 2708 [patent_no_of_claims] => 33 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 38 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/441/04441160.pdf [firstpage_image] =>[orig_patent_app_number] => 242054 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/242054
Point of sale terminal having prompting display Mar 8, 1981 Issued
Array ( [id] => 2101166 [patent_doc_number] => 04475196 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-10-02 [patent_title] => 'Instrument for locating faults in aircraft passenger reading light and attendant call control system' [patent_app_type] => 1 [patent_app_number] => 6/241047 [patent_app_country] => US [patent_app_date] => 1981-03-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 11 [patent_no_of_words] => 11867 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 244 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/475/04475196.pdf [firstpage_image] =>[orig_patent_app_number] => 241047 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/241047
Instrument for locating faults in aircraft passenger reading light and attendant call control system Mar 5, 1981 Issued
Array ( [id] => 2061689 [patent_doc_number] => 04393501 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-07-12 [patent_title] => 'Line protocol for communication system' [patent_app_type] => 1 [patent_app_number] => 6/238205 [patent_app_country] => US [patent_app_date] => 1981-02-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 13 [patent_no_of_words] => 8310 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/393/04393501.pdf [firstpage_image] =>[orig_patent_app_number] => 238205 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/238205
Line protocol for communication system Feb 25, 1981 Issued
Array ( [id] => 2042049 [patent_doc_number] => 04414664 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-11-08 [patent_title] => 'Wait circuitry for interfacing between field maintenance processor and device specific adaptor circuit' [patent_app_type] => 1 [patent_app_number] => 6/236885 [patent_app_country] => US [patent_app_date] => 1981-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 8 [patent_no_of_words] => 7524 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 203 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/414/04414664.pdf [firstpage_image] =>[orig_patent_app_number] => 236885 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/236885
Wait circuitry for interfacing between field maintenance processor and device specific adaptor circuit Feb 22, 1981 Issued
Array ( [id] => 2009981 [patent_doc_number] => 04398292 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-08-09 [patent_title] => 'Method and apparatus for encoding digital with two error correcting codes' [patent_app_type] => 1 [patent_app_number] => 6/237487 [patent_app_country] => US [patent_app_date] => 1981-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 8688 [patent_no_of_claims] => 25 [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/04/398/04398292.pdf [firstpage_image] =>[orig_patent_app_number] => 237487 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/237487
Method and apparatus for encoding digital with two error correcting codes Feb 22, 1981 Issued
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