
Keith D. Walker
Supervisory Patent Examiner (ID: 7518, Phone: (571)272-3458 , Office: P/1735 )
| Most Active Art Unit | 1735 |
| Art Unit(s) | 1726, 1745, 1795, 1735 |
| Total Applications | 565 |
| Issued Applications | 152 |
| Pending Applications | 54 |
| Abandoned Applications | 362 |
Applications
| Application number | Title of the application | Filing Date | Status |
|---|---|---|---|
Array
(
[id] => 17068045
[patent_doc_number] => 20210270260
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2021-09-02
[patent_title] => Compressor Cylinder Switching Control Method and Device, Unit and Air Conditioning System
[patent_app_type] => utility
[patent_app_number] => 17/259578
[patent_app_country] => US
[patent_app_date] => 2018-12-19
[patent_effective_date] => 0000-00-00
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17259578
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/259578 | Compressor cylinder switching control method and device, unit and air conditioning system | Dec 18, 2018 | Issued |
Array
(
[id] => 17728371
[patent_doc_number] => 11384752
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2022-07-12
[patent_title] => Agricultural work vehicle having air supply device
[patent_app_type] => utility
[patent_app_number] => 16/969390
[patent_app_country] => US
[patent_app_date] => 2018-12-14
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Array
(
[id] => 16504505
[patent_doc_number] => 20200383761
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2020-12-10
[patent_title] => ORAL CLEANING DEVICE WITH VARIABLE FLUID PRESSURIZATION
[patent_app_type] => utility
[patent_app_number] => 16/767143
[patent_app_country] => US
[patent_app_date] => 2018-11-28
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[rel_patent_id] =>[rel_patent_doc_number] =>) 16/767143 | ORAL CLEANING DEVICE WITH VARIABLE FLUID PRESSURIZATION | Nov 27, 2018 | Abandoned |
Array
(
[id] => 19151746
[patent_doc_number] => 11976649
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2024-05-07
[patent_title] => Air pump with external pressure relief valve
[patent_app_type] => utility
[patent_app_number] => 17/271429
[patent_app_country] => US
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/271429 | Air pump with external pressure relief valve | Nov 14, 2018 | Issued |
Array
(
[id] => 16399605
[patent_doc_number] => 20200340463
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[patent_kind] => A1
[patent_issue_date] => 2020-10-29
[patent_title] => BENT AXIS HYDRAULIC PUMP WITH CENTRIFUGAL ASSIST
[patent_app_type] => utility
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[rel_patent_id] =>[rel_patent_doc_number] =>) 16/757995 | Bent axis hydraulic pump with centrifugal assist | Nov 14, 2018 | Issued |
Array
(
[id] => 18202958
[patent_doc_number] => 11585346
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[patent_kind] => B2
[patent_issue_date] => 2023-02-21
[patent_title] => Pump assembly, in particular for supplying a slide ring seal assembly
[patent_app_type] => utility
[patent_app_number] => 16/761018
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Array
(
[id] => 17429192
[patent_doc_number] => 20220056901
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[patent_issue_date] => 2022-02-24
[patent_title] => FAULT DETECTION AND PREDICTION
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/290477 | Fault detection and prediction | Nov 1, 2018 | Issued |
Array
(
[id] => 16306041
[patent_doc_number] => 10774822
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[patent_title] => Multiphase production boost method and system
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Array
(
[id] => 16383883
[patent_doc_number] => 10808708
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[patent_issue_date] => 2020-10-20
[patent_title] => Cup-cover fan and water cup thereof
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Array
(
[id] => 18505234
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[patent_title] => Vehicular electric compressor
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[rel_patent_id] =>[rel_patent_doc_number] =>) 16/761938 | Vehicular electric compressor | Oct 8, 2018 | Issued |
Array
(
[id] => 16697376
[patent_doc_number] => 10947962
[patent_country] => US
[patent_kind] => B1
[patent_issue_date] => 2021-03-16
[patent_title] => Low disturbance cryocooler compressor
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[rel_patent_id] =>[rel_patent_doc_number] =>) 16/153608 | Low disturbance cryocooler compressor | Oct 4, 2018 | Issued |
Array
(
[id] => 14215747
[patent_doc_number] => 20190120258
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[patent_issue_date] => 2019-04-25
[patent_title] => HYDRAULIC PRESSURE AMPLIFIER ARRANGEMENT
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Array
(
[id] => 16298528
[patent_doc_number] => 20200284251
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Array
(
[id] => 16832791
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Array
(
[id] => 16663957
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[patent_title] => Cardiac pump having a turbine with internal blades
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Array
(
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Array
(
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Array
(
[id] => 19536185
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Array
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Array
(
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