IP Library › Granted Patent US 12,558,716
Granted Patent B2
US 12,558,716 · App. 19/220,224 · Granted Feb 24, 2026

In-situ mycoremediation system and process

Inventors: John Gregg (Signal Hill, CA); Laura Gregg (Signal Hill, CA); James Gregg (Signal Hill, CA)
Assignee: Seas Geosciences, LLC
B09C1/105C02F3/347B09C2101/00C02F2103/06
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Quick Facts
Patent No.
US 12,558,716
App. No.
19/220,224
Granted
Feb 24, 2026
Kind
B2
Abstract

An in-situ mycoremediation system and process is provided, including a device with a rod casing having a top end, a bottom end, and a sidewall with one or more perforations, the sidewall defining an internal channel that extends from an intake opening on the top end to the one or more perforations, a sleeve that extends around at least part of the rod casing and that is slidable between at least a first position that covers the one or more perforations and a second position that at least partly uncovers the one or more perforations, and a plumbing line linked to the intake opening and configured to facilitate forcible injection of one more fungal mixtures and/or air via the one or more perforations when the sleeve is in the second position.

Claims (22)

1 . An injection device for remediation, the injection device comprising:

a rod casing having a sidewall with (i) a first portion toward a bottom end having a first outside diameter and (ii) a recessed segment toward a top end having a second outside diameter that is less than the first outside diameter, the recessed segment including one or more perforations located in the sidewall; and

a sleeve that extends around at least part of the recessed segment of the rod casing, the sleeve being movable along a long axis of the rod casing between at least a first position that covers the one or more perforations and a second position that at least partly uncovers the one or more perforations, wherein the injection device is configured to inject one more remediation materials via the one or more perforations.

2 . The injection device of claim 1 , wherein the top end includes an intake opening, the bottom end includes a tip, and the sidewall defines an internal channel that extends from the intake opening to the one or more perforations.

3 . The injection device of claim 1 , wherein the one or more perforations include a screen.

4 . The injection device of claim 1 , wherein the one or more perforations are defined by a tear drop shape.

5 . The injection device of claim 1 , wherein the sleeve extends entirely around the recessed segment of the rod casing.

6 . The injection device of claim 1 , wherein the sleeve is slidably pushed to the first position and pulled to the second position.

7 . The injection device of claim 1 , wherein the sleeve is rotated in one direction to the first position and in an opposite direction to the second position.

8 . The injection device of claim 1 , wherein the sleeve is movable to one or more intermediate positions between the first position and the second position.

9 . The injection device of claim 1 , wherein the first position and/or the second position are defined by a stopper pin.

10 . The injection device of claim 1 , wherein the injection device is configured to forcibly inject one more remediation materials into a subsurface via the one or more perforations.

11 . The injection device of claim 1 , wherein the injection device is configured to inject a gaseous medium.

12 . The injection device of claim 1 , wherein the injection device is configured to inject the following type of remediation material: mycelium.

13 . The injection device of claim 1 , wherein the sleeve shares the first outside diameter of the rod casing.

14 . The injection device of claim 1 , wherein the one or more perforations include two or more perforations that are radially distributed about the sidewall of the rod casing.

15 . The injection device of claim 1 , wherein the one or more perforations include two or more perforations that are distributed along the long axis of the rod casing.

16 . The injection device of claim 1 , wherein the sleeve is a hollow cylindrical body with an inner wall diameter that matches the second outside diameter of the recessed segment with tolerance for slidable engagement.

17 . The injection device of claim 1 , wherein the sleeve has a first end that engages an edge transition of the recessed segment to cover the one or more perforations.

18 . The injection device of claim 1 , wherein the sleeve and the rod casing combine to define a cylindrical body when the sleeve is in the first position.

19 . The injection device of claim 1 , wherein the first outside diameter is approximately 1.5 to 2.25 inches and the second outside diameter is approximately 1 to 1.75 inches.

20 . The injection device of claim 1 , wherein the injection device is approximately 24 to 48 inches in length.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 30, 2026
From: SEAS GEOSCIENCES, LLC
To: GREGG DRILLING, LLC
Reel/Frame 075474/0064 →
CHANGE OF NAME Recorded Oct 10, 2025
From: GREGG MARINE, LLC
To: SEAS GEOSCIENCES, LLC
Reel/Frame 073081/0434 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 8, 2025
From: GREGG DRILLING, LLC
To: GREGG MARINE, LLC
Reel/Frame 071635/0013 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 5, 2025
From: GREGG, JOHN; GREGG, LAURA; GREGG, JAMES
To: GREGG DRILLING, LLC
Reel/Frame 071611/0968 →
Continuity (3)
Continuation 17856402 · Jul 1, 2022
Provisional Application 63217756 · Jul 1, 2021
Related Publication 20250281956A1 · Sep 11, 2025
References Cited (4)
US 5631160A · Bruso · 1997 [cited by examiner]
US 10907143B2 · Kucharzyk et al. · 2021 [cited by applicant]
WO WO2021228351A1 · 2021 [cited by applicant]
Battelle Memorial Institute 2022; Encapsulating Fungal Enzymes for Safer Oil Remediation case study; case study; downloaded on Jun. 29, 2022, at: https://www.battelle.org/insights/case-studies/case-study-details/encapsu… [cited by applicant]