Search

Erik B. Crawford

Examiner (ID: 16649, Phone: (571)270-1011 , Office: P/1677 )

Most Active Art Unit
1677
Art Unit(s)
1641, 1677
Total Applications
417
Issued Applications
241
Pending Applications
3
Abandoned Applications
173

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20386220 [patent_doc_number] => 12485934 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-02 [patent_title] => Hybrid cable/rail transportation system [patent_app_type] => utility [patent_app_number] => 17/615418 [patent_app_country] => US [patent_app_date] => 2020-06-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 94 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17615418 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/615418
Hybrid cable/rail transportation system Jun 4, 2020 Issued
Array ( [id] => 16311744 [patent_doc_number] => 20200290482 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-09-17 [patent_title] => TRACKED ELECTRIC VEHICLE SYSTEMS [patent_app_type] => utility [patent_app_number] => 16/892738 [patent_app_country] => US [patent_app_date] => 2020-06-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 17701 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 158 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16892738 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/892738
TRACKED ELECTRIC VEHICLE SYSTEMS Jun 3, 2020 Abandoned
Array ( [id] => 16468710 [patent_doc_number] => 20200370247 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-11-26 [patent_title] => RAILWAY SLEEPERS AND METHODS THEREOF [patent_app_type] => utility [patent_app_number] => 16/883699 [patent_app_country] => US [patent_app_date] => 2020-05-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8168 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 35 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16883699 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/883699
Railway sleepers and methods thereof May 25, 2020 Issued
Array ( [id] => 19123248 [patent_doc_number] => 11967242 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-04-23 [patent_title] => Railroad crossing and adjacent signalized intersection vehicular traffic control preemption systems and methods [patent_app_type] => utility [patent_app_number] => 16/881312 [patent_app_country] => US [patent_app_date] => 2020-05-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 14645 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 111 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16881312 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/881312
Railroad crossing and adjacent signalized intersection vehicular traffic control preemption systems and methods May 21, 2020 Issued
Array ( [id] => 18544846 [patent_doc_number] => 11718182 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-08-08 [patent_title] => Railway vehicle with aerodynamic lift control device [patent_app_type] => utility [patent_app_number] => 17/788763 [patent_app_country] => US [patent_app_date] => 2020-05-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 4312 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 270 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17788763 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/788763
Railway vehicle with aerodynamic lift control device May 17, 2020 Issued
Array ( [id] => 17768464 [patent_doc_number] => 11400383 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-08-02 [patent_title] => Zip line rail system [patent_app_type] => utility [patent_app_number] => 15/931275 [patent_app_country] => US [patent_app_date] => 2020-05-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 18 [patent_no_of_words] => 5810 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15931275 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/931275
Zip line rail system May 12, 2020 Issued
Array ( [id] => 17896505 [patent_doc_number] => 20220306167 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-09-29 [patent_title] => METHOD FOR DETECTION OF FLAT WHEEL DEFORMATION BY VIBRATION MEASUREMENT FROM RAILS [patent_app_type] => utility [patent_app_number] => 17/297534 [patent_app_country] => US [patent_app_date] => 2020-05-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3420 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [patent_words_short_claim] => 64 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17297534 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/297534
METHOD FOR DETECTION OF FLAT WHEEL DEFORMATION BY VIBRATION MEASUREMENT FROM RAILS May 6, 2020 Abandoned
Array ( [id] => 16436636 [patent_doc_number] => 20200353961 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-11-12 [patent_title] => Apparatus for Locating a Mobile Railway Asset [patent_app_type] => utility [patent_app_number] => 16/868523 [patent_app_country] => US [patent_app_date] => 2020-05-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14114 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -56 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16868523 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/868523
Apparatus for locating a mobile railway asset May 5, 2020 Issued
Array ( [id] => 16414129 [patent_doc_number] => 10822002 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2020-11-03 [patent_title] => External airbag assembly for a rail vehicle [patent_app_type] => utility [patent_app_number] => 16/860225 [patent_app_country] => US [patent_app_date] => 2020-04-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 4060 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 238 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16860225 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/860225
External airbag assembly for a rail vehicle Apr 27, 2020 Issued
Array ( [id] => 19897384 [patent_doc_number] => 12275284 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-15 [patent_title] => Rail gear assembly [patent_app_type] => utility [patent_app_number] => 17/601218 [patent_app_country] => US [patent_app_date] => 2020-04-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 19 [patent_no_of_words] => 7054 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 220 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17601218 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/601218
Rail gear assembly Apr 23, 2020 Issued
Array ( [id] => 16398310 [patent_doc_number] => 20200339168 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-10-29 [patent_title] => CONTROL SYSTEM FOR SIGNALS AT RAILROAD GRADE CROSSING [patent_app_type] => utility [patent_app_number] => 16/855494 [patent_app_country] => US [patent_app_date] => 2020-04-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1204 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16855494 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/855494
CONTROL SYSTEM FOR SIGNALS AT RAILROAD GRADE CROSSING Apr 21, 2020 Abandoned
Array ( [id] => 16360484 [patent_doc_number] => 20200317235 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-10-08 [patent_title] => METHODS AND SYSTEMS FOR ACHIEVING VITAL ULTRA-WIDEBAND (UWB) BASED TRAIN CONTROL [patent_app_type] => utility [patent_app_number] => 16/843148 [patent_app_country] => US [patent_app_date] => 2020-04-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6315 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 144 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16843148 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/843148
Methods and systems for achieving vital ultra-wideband (UWB) based train control Apr 7, 2020 Issued
Array ( [id] => 16192574 [patent_doc_number] => 20200233423 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-07-23 [patent_title] => WORK ZONE INSTRUCTION VERIFICATION SYSTEM [patent_app_type] => utility [patent_app_number] => 16/841296 [patent_app_country] => US [patent_app_date] => 2020-04-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7160 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 103 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16841296 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/841296
Work zone instruction verification system Apr 5, 2020 Issued
Array ( [id] => 16360488 [patent_doc_number] => 20200317239 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-10-08 [patent_title] => BROKEN WHEEL DETECTION ON RAILROAD TRAINS [patent_app_type] => utility [patent_app_number] => 16/839532 [patent_app_country] => US [patent_app_date] => 2020-04-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6649 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [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] => 16839532 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/839532
Broken wheel detection on railroad trains Apr 2, 2020 Issued
Array ( [id] => 17727367 [patent_doc_number] => 11383741 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-07-12 [patent_title] => Flexible clamp [patent_app_type] => utility [patent_app_number] => 17/438254 [patent_app_country] => US [patent_app_date] => 2020-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2631 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 124 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17438254 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/438254
Flexible clamp Mar 25, 2020 Issued
Array ( [id] => 18979755 [patent_doc_number] => 11904914 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-02-20 [patent_title] => Systems and methods for identifying potential deficiencies in railway environment objects [patent_app_type] => utility [patent_app_number] => 16/827238 [patent_app_country] => US [patent_app_date] => 2020-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 7622 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 206 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16827238 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/827238
Systems and methods for identifying potential deficiencies in railway environment objects Mar 22, 2020 Issued
Array ( [id] => 16343013 [patent_doc_number] => 20200307663 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-10-01 [patent_title] => METHOD FOR MIXED OPERATION OF A SECTION OF RAILROAD LINE WITH SWITCH, AND SECTION OF LINE AND SWITCH [patent_app_type] => utility [patent_app_number] => 16/823461 [patent_app_country] => US [patent_app_date] => 2020-03-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3340 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 41 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16823461 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/823461
Method for mixed operation of a section of railroad line with switch, and section of line and switch Mar 18, 2020 Issued
Array ( [id] => 17641552 [patent_doc_number] => 20220169290 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-06-02 [patent_title] => Passage Detection for a Cableway [patent_app_type] => utility [patent_app_number] => 17/432312 [patent_app_country] => US [patent_app_date] => 2020-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6410 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 176 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17432312 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/432312
Passage detection for a cableway Mar 9, 2020 Issued
Array ( [id] => 18187199 [patent_doc_number] => 11577763 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-02-14 [patent_title] => Method and controller for determining the relationship between a track-circuit transmitted current signal and a railway vehicle location on a railway track [patent_app_type] => utility [patent_app_number] => 16/811244 [patent_app_country] => US [patent_app_date] => 2020-03-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 3531 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 94 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16811244 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/811244
Method and controller for determining the relationship between a track-circuit transmitted current signal and a railway vehicle location on a railway track Mar 5, 2020 Issued
Array ( [id] => 17082602 [patent_doc_number] => 20210277608 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-09 [patent_title] => RAIL CLIP ASSEMBLY AND SNAP LOCK TOE INSULATOR FOR SAME [patent_app_type] => utility [patent_app_number] => 16/811683 [patent_app_country] => US [patent_app_date] => 2020-03-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3237 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 164 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16811683 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/811683
Rail clip assembly and snap lock toe insulator for same Mar 5, 2020 Issued
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