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] => 2198384 [patent_doc_number] => 04511990 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-04-16 [patent_title] => 'Digital processor with floating point multiplier and adder suitable for digital signal processing' [patent_app_type] => 1 [patent_app_number] => 6/311680 [patent_app_country] => US [patent_app_date] => 1981-10-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 29 [patent_no_of_words] => 9018 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 362 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/511/04511990.pdf [firstpage_image] =>[orig_patent_app_number] => 311680 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/311680
Digital processor with floating point multiplier and adder suitable for digital signal processing Oct 14, 1981 Issued
Array ( [id] => 2094031 [patent_doc_number] => 04464729 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-08-07 [patent_title] => 'Binary MOS carry-look-ahead parallel adder' [patent_app_type] => 1 [patent_app_number] => 6/311351 [patent_app_country] => US [patent_app_date] => 1981-10-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 2194 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 32 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/464/04464729.pdf [firstpage_image] =>[orig_patent_app_number] => 311351 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/311351
Binary MOS carry-look-ahead parallel adder Oct 13, 1981 Issued
06/311377 BINARY MOS RIPPLE-CARRY PARALLEL ADDER/SUBTRACTER AND ADDER/SUBTRACTER STAGE SUITABLE THEREFOR Oct 13, 1981 Abandoned
06/310469 COMPUTER AND METHOD FOR HIGH SPEED PRIME FACTOR TRANSFORM Oct 12, 1981 Abandoned
06/307632 DIGITAL DATA PROCESSOR WITH HIGH RELIABILITY Sep 30, 1981 Abandoned
Array ( [id] => 2123274 [patent_doc_number] => 04449194 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-05-15 [patent_title] => 'Multiple point, discrete cosine processor' [patent_app_type] => 1 [patent_app_number] => 6/305584 [patent_app_country] => US [patent_app_date] => 1981-09-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 4365 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 195 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/449/04449194.pdf [firstpage_image] =>[orig_patent_app_number] => 305584 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/305584
Multiple point, discrete cosine processor Sep 24, 1981 Issued
Array ( [id] => 2041651 [patent_doc_number] => 04410988 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-10-18 [patent_title] => 'Out of cycle error correction apparatus' [patent_app_type] => 1 [patent_app_number] => 6/303817 [patent_app_country] => US [patent_app_date] => 1981-09-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 3442 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/410/04410988.pdf [firstpage_image] =>[orig_patent_app_number] => 303817 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/303817
Out of cycle error correction apparatus Sep 20, 1981 Issued
Array ( [id] => 2094024 [patent_doc_number] => 04464728 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-08-07 [patent_title] => 'Charge coupled device ripple adder with nearly instantaneous carry propagation' [patent_app_type] => 1 [patent_app_number] => 6/303332 [patent_app_country] => US [patent_app_date] => 1981-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 3453 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 387 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/464/04464728.pdf [firstpage_image] =>[orig_patent_app_number] => 303332 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/303332
Charge coupled device ripple adder with nearly instantaneous carry propagation Sep 17, 1981 Issued
Array ( [id] => 2071434 [patent_doc_number] => 04459696 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-07-10 [patent_title] => 'PCM Signal processor with error detection and correction capability provided by a data error pointer' [patent_app_type] => 1 [patent_app_number] => 6/302078 [patent_app_country] => US [patent_app_date] => 1981-09-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 4366 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 94 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/459/04459696.pdf [firstpage_image] =>[orig_patent_app_number] => 302078 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/302078
PCM Signal processor with error detection and correction capability provided by a data error pointer Sep 13, 1981 Issued
Array ( [id] => 2099029 [patent_doc_number] => 04456997 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-06-26 [patent_title] => 'Facility for fail-safe data transmission between trackside equipment of a guideway and vehicles moving therealong' [patent_app_type] => 1 [patent_app_number] => 6/301670 [patent_app_country] => US [patent_app_date] => 1981-09-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 1950 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 46 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/456/04456997.pdf [firstpage_image] =>[orig_patent_app_number] => 301670 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/301670
Facility for fail-safe data transmission between trackside equipment of a guideway and vehicles moving therealong Sep 13, 1981 Issued
Array ( [id] => 2100933 [patent_doc_number] => 04475173 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-10-02 [patent_title] => 'Multibit unidirectional shifter unit' [patent_app_type] => 1 [patent_app_number] => 6/299281 [patent_app_country] => US [patent_app_date] => 1981-09-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 5442 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 646 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/475/04475173.pdf [firstpage_image] =>[orig_patent_app_number] => 299281 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/299281
Multibit unidirectional shifter unit Sep 3, 1981 Issued
Array ( [id] => 2127410 [patent_doc_number] => 04477878 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-10-16 [patent_title] => 'Discrete Fourier transform with non-tumbled output' [patent_app_type] => 1 [patent_app_number] => 6/299258 [patent_app_country] => US [patent_app_date] => 1981-09-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 4251 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 177 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/477/04477878.pdf [firstpage_image] =>[orig_patent_app_number] => 299258 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/299258
Discrete Fourier transform with non-tumbled output Sep 2, 1981 Issued
Array ( [id] => 2110919 [patent_doc_number] => 04472788 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-09-18 [patent_title] => 'Shift circuit having a plurality of cascade-connected data selectors' [patent_app_type] => 1 [patent_app_number] => 6/296859 [patent_app_country] => US [patent_app_date] => 1981-08-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 3197 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 28 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/472/04472788.pdf [firstpage_image] =>[orig_patent_app_number] => 296859 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/296859
Shift circuit having a plurality of cascade-connected data selectors Aug 26, 1981 Issued
Array ( [id] => 2085612 [patent_doc_number] => 04450432 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-05-22 [patent_title] => 'Binary MOS parallel comparators' [patent_app_type] => 1 [patent_app_number] => 6/296399 [patent_app_country] => US [patent_app_date] => 1981-08-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 3400 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 24 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/450/04450432.pdf [firstpage_image] =>[orig_patent_app_number] => 296399 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/296399
Binary MOS parallel comparators Aug 25, 1981 Issued
Array ( [id] => 2130530 [patent_doc_number] => 04482978 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-11-13 [patent_title] => 'Key switch input control circuit' [patent_app_type] => 1 [patent_app_number] => 6/296144 [patent_app_country] => US [patent_app_date] => 1981-08-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 2646 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 169 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/482/04482978.pdf [firstpage_image] =>[orig_patent_app_number] => 296144 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/296144
Key switch input control circuit Aug 24, 1981 Issued
Array ( [id] => 2104215 [patent_doc_number] => 04458326 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-07-03 [patent_title] => 'Method and apparatus for circular interpolation' [patent_app_type] => 1 [patent_app_number] => 6/294248 [patent_app_country] => US [patent_app_date] => 1981-08-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 2306 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 226 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/458/04458326.pdf [firstpage_image] =>[orig_patent_app_number] => 294248 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/294248
Method and apparatus for circular interpolation Aug 18, 1981 Issued
Array ( [id] => 2163932 [patent_doc_number] => 04521866 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-06-04 [patent_title] => 'Distributed arithmetic oversampling recursive digital filter' [patent_app_type] => 1 [patent_app_number] => 6/293606 [patent_app_country] => US [patent_app_date] => 1981-08-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 9 [patent_no_of_words] => 7807 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 592 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/521/04521866.pdf [firstpage_image] =>[orig_patent_app_number] => 293606 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/293606
Distributed arithmetic oversampling recursive digital filter Aug 16, 1981 Issued
Array ( [id] => 2086697 [patent_doc_number] => 04450533 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-05-22 [patent_title] => 'Distributed arithmetic digital processing circuit' [patent_app_type] => 1 [patent_app_number] => 6/293367 [patent_app_country] => US [patent_app_date] => 1981-08-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5535 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 385 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/450/04450533.pdf [firstpage_image] =>[orig_patent_app_number] => 293367 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/293367
Distributed arithmetic digital processing circuit Aug 16, 1981 Issued
Array ( [id] => 2105887 [patent_doc_number] => 04446452 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-05-01 [patent_title] => 'Magnitude comparator circuit and method' [patent_app_type] => 1 [patent_app_number] => 6/292497 [patent_app_country] => US [patent_app_date] => 1981-08-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 3209 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 138 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/446/04446452.pdf [firstpage_image] =>[orig_patent_app_number] => 292497 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/292497
Magnitude comparator circuit and method Aug 12, 1981 Issued
Array ( [id] => 2072490 [patent_doc_number] => 04430721 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-02-07 [patent_title] => 'Arithmetic circuits for digital filters' [patent_app_type] => 1 [patent_app_number] => 6/290500 [patent_app_country] => US [patent_app_date] => 1981-08-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 16 [patent_no_of_words] => 8761 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 158 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/430/04430721.pdf [firstpage_image] =>[orig_patent_app_number] => 290500 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/290500
Arithmetic circuits for digital filters Aug 5, 1981 Issued
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