
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] => 16541802
[patent_doc_number] => 20200408215
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2020-12-31
[patent_title] => FLUID PUMPING SYSTEM WITH A CONTINUOUSLY VARIABLE TRANSMISSION
[patent_app_type] => utility
[patent_app_number] => 17/010540
[patent_app_country] => US
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Array
(
[id] => 18709979
[patent_doc_number] => 20230332601
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[patent_kind] => A1
[patent_issue_date] => 2023-10-19
[patent_title] => CONTROL OF OPERATING LIQUID FLOW INTO A LIQUID RING PUMP
[patent_app_type] => utility
[patent_app_number] => 18/042696
[patent_app_country] => US
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Array
(
[id] => 19676623
[patent_doc_number] => 12188475
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[patent_kind] => B2
[patent_issue_date] => 2025-01-07
[patent_title] => Centrifugal pump and a pump housing
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Array
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[id] => 17838498
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Array
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Array
(
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[patent_doc_number] => 11962216
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[patent_issue_date] => 2024-04-16
[patent_title] => Annular electromagnetic induction pump
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Array
(
[id] => 16614431
[patent_doc_number] => 20210033084
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[patent_issue_date] => 2021-02-04
[patent_title] => CYLINDER PISTON FOR AN AIR COMPRESSOR
[patent_app_type] => utility
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Array
(
[id] => 16437851
[patent_doc_number] => 20200355177
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[patent_issue_date] => 2020-11-12
[patent_title] => PRESSURE ADJUSTMENT APPARATUS AND METHOD
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Array
(
[id] => 17960846
[patent_doc_number] => 20220341426
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Array
(
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Array
(
[id] => 17852692
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[patent_title] => DIVERSIFIED AND REMOVABLE PUMP SYSTEMS AND METHODS FOR INFLATING AND DEFLATING INFLATABLE OBJECTS
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/625060 | DIVERSIFIED AND REMOVABLE PUMP SYSTEMS AND METHODS FOR INFLATING AND DEFLATING INFLATABLE OBJECTS | Jul 5, 2020 | Pending |
Array
(
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Array
(
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Array
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Array
(
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Array
(
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Array
(
[id] => 17750392
[patent_doc_number] => 20220228597
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[patent_title] => VACUUM PUMP FOR USE DURING MAINTENANCE OR COMMISSIONING OF AN HVAC-R SYSTEM, ADAPTER FOR A VACUUM PUMP, AND A METHOD OF PERFORMING A VACUUM TEST ON AN HVAC-R SYSTEM
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Array
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Array
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Array
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