Assignee
DOWNHOLE PRODUCTS LTD
GB·17 granted patents·3 pending applications·23 citations·filing 2015–2025
Top patents by PatentIndex Score
20 records- 0188US10156103B2CentraliserDOWNHOLE PRODUCTS LTD·Filed 2015·Granted Dec 18, 2018·8 cites·30 claims
- 0280US11203902B2Guide shoe with lockable noseDOWNHOLE PRODUCTS LTD·Filed 2019·Granted Dec 21, 2021·3 cites·13 claims
- 0379US11286729B2Slimline stop collarDOWNHOLE PRODUCTS LTD·Filed 2019·Granted Mar 29, 2022·3 cites·13 claims
- 0478US11920432B2Toe valve with vented atmospheric chamberDOWNHOLE PRODUCTS LTD·Filed 2020·Granted Mar 5, 2024·1 cites·20 claims
- 0578US11428073B2Overpressure toe valve with atmospheric chamberDOWNHOLE PRODUCTS LTD·Filed 2019·Granted Aug 30, 2022·2 cites·20 claims
- 0676US11965384B2Variable stiffness centralizerDOWNHOLE PRODUCTS LTD·Filed 2022·Granted Apr 23, 2024·1 cites·20 claims
- 0772US11536095B2Slimline stop collar with solid cam ringDOWNHOLE PRODUCTS LTD·Filed 2021·Granted Dec 27, 2022·1 cites·15 claims
- 0862US12012812B2Dual flow converted auto-fill float valveDOWNHOLE PRODUCTS LTD·Filed 2022·Granted Jun 18, 2024·0 cites·15 claims
- 0959US12270262B2Float equipment for use with composite casing or liner stringDOWNHOLE PRODUCTS LTD·Filed 2023·Granted Apr 8, 2025·0 cites·7 claims
- 1057US12286845B2Slimline stop collar with seal to prevent micro-annulus leakageDOWNHOLE PRODUCTS LTD·Filed 2023·Granted Apr 29, 2025·0 cites·9 claims
- 1156US12392219B2Ball deflector for float collarDOWNHOLE PRODUCTS LTD·Filed 2024·Granted Aug 19, 2025·0 cites·12 claims
- 1255US12584380B2Combination landing and float collarDOWNHOLE PRODUCTS LTD·Filed 2025·Granted Mar 24, 2026·0 cites·19 claims
- 1354US12312879B2Rasping shoe for non-rotational deployment of casing stringDOWNHOLE PRODUCTS LTD·Filed 2023·Granted May 27, 2025·0 cites·13 claims
- 1452US12305452B2Centralizer having internal stop collarDOWNHOLE PRODUCTS LTD·Filed 2024·Granted May 20, 2025·0 cites·12 claims
- 1552US2019071937A1CentraliserDOWNHOLE PRODUCTS LTD·Filed 2018·Application pending·0 cites
- 1650US12110747B2Casing shoe with flow operated diverter valveDOWNHOLE PRODUCTS LTD·Filed 2023·Granted Oct 8, 2024·0 cites·17 claims
- 1749US11486228B2Resettable toe valveDOWNHOLE PRODUCTS LTD·Filed 2019·Granted Nov 1, 2022·0 cites·16 claims
- 1845US2021025245A1Deployable casing centraliser with latch for bow springsDOWNHOLE PRODUCTS LTD·Filed 2019·Application pending·0 cites
- 1941USD892868STubing shoeDOWNHOLE PRODUCTS LTD·Filed 2018·Granted Aug 11, 2020·4 cites·1 claims
- 2041US2021270092A1Centralizer having atmospheric chamber for expansion in response to hydrostatic pressureDOWNHOLE PRODUCTS LTD·Filed 2019·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →