# US 10,500,525 B2 · Method for producing an extract from cannabis plant matter

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,500,525 B2
- Document ID: US10500525B2
- Status: Granted
- Kind: B2
- Application number: 15/679,608
- Filed: 2017-08-17
- Published: 2019-02-21
- Granted: 2019-12-10
- Earliest claimed: 2017-08-17
- Applicants: Curtis Hare
- Inventors: Curtis Hare
- Web page: https://patentgrep.com/patent/US10500525B2

## CPC

- B01D 11/04: of solutions which are liquid
- A61K 31/658: {o-phenolic cannabinoids, e.g. cannabidiol, cannabigerolic acid, cannabichromene or tetrahydrocannabinol}
- A61K 36/3482: {Cannabis}
- B01D 11/02: of solids
- C11B 1/10: by extracting
- A61K 2236/35: Extraction with lipophilic solvents, e.g. Hexane or petrol ether
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- C11B: PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES (drying-oils C09F)

## Abstract

The invention is a process of extracting Δ9-THC from cannabis, the method comprising, gathering a quantity of plant parts, shredding the quantity of plant parts into a particulate matter, heating the particulate matter at a temperature, wherein the particulate undergoes a decarboxylation process converting a quantity of the THCA-A within the particulate matter to a quantity of Δ9-THC, combining the decarboxylated particulate matter with a quantity of a predetermined liquid within a sealed pressurized container, wherein the pressure ranges from 10 to 15 PSI for a predetermined time period, wherein the quantity of the Δ9-THC is extracted from the decarboxylated particulate matter and the quantity of Δ9-THC is chemically bonded with the liquid, and a Δ9-THC liquid is formed, sifting the particulate matter from the Δ9-THC liquid, and cooling the Δ9-THC.

## Claims

### Claim 1

A process for extracting Delta 9-tetrahydrocannabinol from cannabis, the method consisting essentially of:
a) shredding a predetermined quantity of cannabis which contains delta 9-Tetrahydrocannabinolic acid A into cannabis of about one inch in length;
b) heating the cannabis at a temperature in a range of 225° F. to 245° F., wherein the cannabis undergoes a decarboxylation process, wherein a decarboxylated cannabis is created that contains a predetermined amount of Delta 9-tetrahydrocannabinol;
c) combining the decarboxylated cannabis with a quantity of water to create an aqueous decarboxylated cannabis;
d) pressurizing the aqueous decarboxylated cannabis within a substantially sealed heated pressurized container, wherein the pressure ranges from 10 PSI to 15 PSI and the temperature ranges from 310° F. to 360° F., for a predetermined time, wherein the Delta 9-tetrahydrocannabinol is released from the aqueous decarboxylated cannabis and is chemically bonded to the water, and an aqueous Delta 9-tetrahydrocannabinol is formed;
e) sifting the aqueous Delta 9-tetrahydrocannabinol from the aqueous decarboxylated cannabis; and
f) cooling the aqueous Delta 9-tetrahydrocannabinol at a temperature in the range of 20° F. to 40° F.

### Claim 2 (depends on 1)

The process of claim 1, wherein in step d), the predetermined time is about 3 hours.

### Claim 3 (depends on 1)

The process of claim 1, wherein the step of sifting is performed by a gravity separator.