Pipe slitter
US-12496645-B1 · Dec 16, 2025 · US
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Randa Mark D patents
Randa Mark D is listed as an inventor on 25 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Randa Mark D |
| Total patents | 25 |
| First publication | Mar 10, 2020 |
| Latest publication | Dec 16, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Latch assembly for use with an inversion drum
US-12410879-B2 · Sep 9, 2025 · US
Jaw engagement assist system
US-2025141196-A1 · May 1, 2025 · US
Pipe extraction assisted by pre-stressed strand
US-12281726-B2 · Apr 22, 2025 · US
Lead pipe spudding prior to extraction or remediation
US-12092257-B2 · Sep 17, 2024 · US
Latch assembly for use with an inversion drum
US-2024142036-A1 · May 2, 2024 · US
Pipe slitter
US-D1018244-S · Mar 19, 2024 · US
System for applying torsional force to a buried pipe to facilitate extraction
US-11913570-B1 · Feb 27, 2024 · US
Jaw engagement assist system
US-2023339077-A1 · Oct 26, 2023 · US
Piercing tool aiming device
US-11674354-B2 · Jun 13, 2023 · US
Recent patents
Latest publications not already listed above.
Pipe slitting machine with rope storage reel
US-11619336-B2 · Apr 4, 2023 · US
Pipe extraction assisted by pre-stressed strand
US-2022341508-A1 · Oct 27, 2022 · US
System and method for extracting a buried pipe
US-2022325825-A1 · Oct 13, 2022 · US
Piercing tool aiming device
US-2022136335-A1 · May 5, 2022 · US
Pipe Extraction Assisted By Pre-Stressed Strand
US-2021364102-A1 · Nov 25, 2021 · US
Pipe extraction assisted by pre-stressed strand
US-11112033-B2 · Sep 7, 2021 · US
Lead Pipe Spudding Prior To Extraction Or Remediation
US-2021190251-A1 · Jun 24, 2021 · US
Pipe Slitting Machine With Rope Storage Reel
US-2021107074-A1 · Apr 15, 2021 · US
Lead pipe spudding prior to extraction or remediation
US-10969053-B2 · Apr 6, 2021 · US
Reversible pneumatic pipe ramming tool
US-10927602-B2 · Feb 23, 2021 · US
Extraction of ductile pipe
US-10883628-B2 · Jan 5, 2021 · US
Pipe Extraction Assisted By Pre-Stressed Strand
US-2020378529-A1 · Dec 3, 2020 · US
Extraction Of Ductile Pipe
US-2020158261-A1 · May 21, 2020 · US
Latch Assembly For Use With An Inversion Drum
US-2020149673-A1 · May 14, 2020 · US
Extraction of ductile pipe
US-10584807-B2 · Mar 10, 2020 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Charles Machine Works | 25 |
| Earth Tool Co Llc | 3 |
| The Charles Machines Works Inc | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| F16L55/18 | 14 |
| F16L1/06 | 12 |
| F16L1/028 | 12 |
| F16L1/032 | 7 |
| F16L55/165 | 5 |