Search

Frederick F. Krass

Supervisory Patent Examiner (ID: 7632, Phone: (571)272-0580 , Office: P/1612 )

Most Active Art Unit
1614
Art Unit(s)
1614, 1501, 2899, 1503, 1612
Total Applications
2179
Issued Applications
1357
Pending Applications
300
Abandoned Applications
523

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 17490840 [patent_doc_number] => 11280133 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-03-22 [patent_title] => 7000 series aluminum alloy ladder, multipurpose ladder and method [patent_app_type] => utility [patent_app_number] => 15/883958 [patent_app_country] => US [patent_app_date] => 2018-01-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 12 [patent_no_of_words] => 4109 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 497 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15883958 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/883958
7000 series aluminum alloy ladder, multipurpose ladder and method Jan 29, 2018 Issued
Array ( [id] => 16336327 [patent_doc_number] => 10787269 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-09-29 [patent_title] => Automatic retracting firing cable [patent_app_type] => utility [patent_app_number] => 15/862233 [patent_app_country] => US [patent_app_date] => 2018-01-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 12 [patent_no_of_words] => 4014 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 158 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15862233 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/862233
Automatic retracting firing cable Jan 3, 2018 Issued
Array ( [id] => 15071841 [patent_doc_number] => 10465398 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-11-05 [patent_title] => Climbing device having a climbing rail [patent_app_type] => utility [patent_app_number] => 15/849618 [patent_app_country] => US [patent_app_date] => 2017-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 5681 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 135 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15849618 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/849618
Climbing device having a climbing rail Dec 19, 2017 Issued
Array ( [id] => 12835300 [patent_doc_number] => 20180170272 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-06-21 [patent_title] => LADDER MOUNTING SYSTEM [patent_app_type] => utility [patent_app_number] => 15/844913 [patent_app_country] => US [patent_app_date] => 2017-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2284 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 210 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15844913 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/844913
LADDER MOUNTING SYSTEM Dec 17, 2017 Abandoned
Array ( [id] => 14896531 [patent_doc_number] => 20190292031 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-09-26 [patent_title] => Working Platform for a Tractor [patent_app_type] => utility [patent_app_number] => 15/763874 [patent_app_country] => US [patent_app_date] => 2017-12-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5876 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15763874 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/763874
Working platform for a tractor Dec 14, 2017 Issued
Array ( [id] => 16461581 [patent_doc_number] => 10844922 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-11-24 [patent_title] => Multi-closure energy dissipating touch fastener links [patent_app_type] => utility [patent_app_number] => 15/840205 [patent_app_country] => US [patent_app_date] => 2017-12-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 15 [patent_no_of_words] => 7636 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 191 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15840205 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/840205
Multi-closure energy dissipating touch fastener links Dec 12, 2017 Issued
Array ( [id] => 14437671 [patent_doc_number] => 20190176707 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-06-13 [patent_title] => FOLDABLE LADDER STRUCTURE FOR AUTOMOBILE CARGO BED [patent_app_type] => utility [patent_app_number] => 15/835478 [patent_app_country] => US [patent_app_date] => 2017-12-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2386 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 247 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15835478 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/835478
FOLDABLE LADDER STRUCTURE FOR AUTOMOBILE CARGO BED Dec 7, 2017 Abandoned
Array ( [id] => 12787063 [patent_doc_number] => 20180154190 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-06-07 [patent_title] => SELF-LOCKING DESCENDER [patent_app_type] => utility [patent_app_number] => 15/834748 [patent_app_country] => US [patent_app_date] => 2017-12-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5062 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 275 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15834748 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/834748
Self-locking descender Dec 6, 2017 Issued
Array ( [id] => 18084523 [patent_doc_number] => 11534633 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-12-27 [patent_title] => Harnesses [patent_app_type] => utility [patent_app_number] => 15/832808 [patent_app_country] => US [patent_app_date] => 2017-12-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 28 [patent_no_of_words] => 5353 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 275 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15832808 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/832808
Harnesses Dec 5, 2017 Issued
Array ( [id] => 12766762 [patent_doc_number] => 20180147422 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-05-31 [patent_title] => ESCAPE SYSTEM USING A TEXTILE ELEMENT OF VARIABLE DIAMETER [patent_app_type] => utility [patent_app_number] => 15/827773 [patent_app_country] => US [patent_app_date] => 2017-11-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4138 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 181 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15827773 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/827773
ESCAPE SYSTEM USING A TEXTILE ELEMENT OF VARIABLE DIAMETER Nov 29, 2017 Abandoned
Array ( [id] => 12787084 [patent_doc_number] => 20180154197 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-06-07 [patent_title] => HORIZONTAL LIFELINES WITH SAFETY IMPROVEMENTS [patent_app_type] => utility [patent_app_number] => 15/824193 [patent_app_country] => US [patent_app_date] => 2017-11-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2873 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 61 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15824193 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/824193
HORIZONTAL LIFELINES WITH SAFETY IMPROVEMENTS Nov 27, 2017 Abandoned
Array ( [id] => 12812608 [patent_doc_number] => 20180162706 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-06-14 [patent_title] => ELEVATOR SYSTEM FOR AUXILIARY POWER UNIT [patent_app_type] => utility [patent_app_number] => 15/816203 [patent_app_country] => US [patent_app_date] => 2017-11-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4271 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 120 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15816203 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/816203
Elevator system for auxiliary power unit Nov 16, 2017 Issued
Array ( [id] => 14278683 [patent_doc_number] => 20190136626 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-05-09 [patent_title] => EXTERNAL LADDER ASSEMBLY FOR WIND TURBINE NACELLE [patent_app_type] => utility [patent_app_number] => 15/805168 [patent_app_country] => US [patent_app_date] => 2017-11-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3802 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15805168 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/805168
External ladder assembly for wind turbine nacelle Nov 6, 2017 Issued
Array ( [id] => 12886942 [patent_doc_number] => 20180187489 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-07-05 [patent_title] => Ladder, Top and Method [patent_app_type] => utility [patent_app_number] => 15/803023 [patent_app_country] => US [patent_app_date] => 2017-11-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7824 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15803023 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/803023
Ladder, top and method Nov 2, 2017 Issued
Array ( [id] => 12703090 [patent_doc_number] => 20180126196 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-05-10 [patent_title] => Restraint System Dual Disconnect [patent_app_type] => utility [patent_app_number] => 15/802923 [patent_app_country] => US [patent_app_date] => 2017-11-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1868 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 156 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15802923 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/802923
Restraint system dual disconnect Nov 2, 2017 Issued
Array ( [id] => 14231785 [patent_doc_number] => 20190128065 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-05-02 [patent_title] => COLLAPSIBLE STEPLADDER [patent_app_type] => utility [patent_app_number] => 15/798633 [patent_app_country] => US [patent_app_date] => 2017-10-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5827 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15798633 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/798633
Collapsible stepladder Oct 30, 2017 Issued
Array ( [id] => 16941470 [patent_doc_number] => 11053699 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-07-06 [patent_title] => Climbing shoe, safety screen support system and safety screen system [patent_app_type] => utility [patent_app_number] => 15/795858 [patent_app_country] => US [patent_app_date] => 2017-10-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 28 [patent_figures_cnt] => 66 [patent_no_of_words] => 8913 [patent_no_of_claims] => 16 [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] =>[firstpage_image] =>[orig_patent_app_number] => 15795858 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/795858
Climbing shoe, safety screen support system and safety screen system Oct 26, 2017 Issued
Array ( [id] => 14231655 [patent_doc_number] => 20190128000 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-05-02 [patent_title] => SAFETY SCREEN AND SAFETY SCREEN SYSTEM [patent_app_type] => utility [patent_app_number] => 15/796203 [patent_app_country] => US [patent_app_date] => 2017-10-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8470 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 76 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15796203 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/796203
Safety screen and safety screen system Oct 26, 2017 Issued
Array ( [id] => 12679426 [patent_doc_number] => 20180118308 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-05-03 [patent_title] => EXTENDABLE LADDER FOR WATERCRAFT [patent_app_type] => utility [patent_app_number] => 15/795998 [patent_app_country] => US [patent_app_date] => 2017-10-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5760 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 95 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15795998 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/795998
Extendable ladder for watercraft Oct 26, 2017 Issued
Array ( [id] => 15538755 [patent_doc_number] => 10569138 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-02-25 [patent_title] => Ascender device and method of use [patent_app_type] => utility [patent_app_number] => 15/788298 [patent_app_country] => US [patent_app_date] => 2017-10-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 24 [patent_no_of_words] => 7171 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 314 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15788298 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/788298
Ascender device and method of use Oct 18, 2017 Issued
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