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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
ZYMEFLOW INC	12600 NORTH FEATHERWOOD SUITE 330 HOUSTON TX 77034-4449

International Classification(s)

• C09K:MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED ....
• C10G:CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HY....
• E21B:EARTH OR ROCK DRILLING

• 2015 Application Filing Year
• C09K Class
• 2848 Applications Filed
• 2073 Patents Issued To-Date
• 72.79 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Frost, Jack G	Duncan, US	21	129
# of filed Patents : 21 Total Citations : 129
Matza, Stephen D	Sugar Land, US	42	145
# of filed Patents : 42 Total Citations : 145
Smith, Martha T	Friendswood, US	6	53
# of filed Patents : 6 Total Citations : 53

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Patent Citation Ranking

• 9 Citation Count
• C09K Class

• 32.37 % this patent is cited more than
• 7 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
7.5 Year Payment	$3600.00	$1800.00	$900.00	Sep 20, 2025
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Sep 20, 2029

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 7.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge - 11.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
March 20, 2018	US,9920236,B2   US9920236B2	GRANTED PATENT AS SECOND PUBLICATION
June 18, 2015	US,20150166877,A1   US20150166877A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9920236

Process of removal of hydrogen sulfide in downhole oilfield applications

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Abstract

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A method and system remove hydrogen sulfide from a sour liquid. In an embodiment, the method for removing hydrogen sulfide from a hydrocarbon containing fluid includes contacting a methylmorpholine-N-oxide solution with the sour liquid. The method also includes allowing the methylmorpholine-N-oxide to react with the hydrogen sulfide to remove the hydrogen sulfide.

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Description

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Claims

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Claims data not available

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Legal Events

 

• AS2023
• AS2023
• AS2023
• MAFP2021
• I2018
• STCF2018
• AS2017
• P2015
• F2015
• PD2011

Date	Code	Event	Description
Nov 29, 2023	AS	ASSIGNMENT	free format text: MERGER;ASSIGNOR:CR3 ZYMEFLOW, INC.;REEL/FRAME:070523/0169 Owner name: ZYMEFLOW, INC., TEXAS Effective Date: Nov 29, 2023
Nov 29, 2023	AS	ASSIGNMENT	free format text: MERGER;ASSIGNOR:TRISTAR GLOBAL ENERGY SOLUTIONS, INC.;REEL/FRAME:070508/0396 Owner name: CR3 ZYMEFLOW, INC., TEXAS Effective Date: Nov 29, 2023
Nov 29, 2023	AS	ASSIGNMENT	free format text: MERGER;ASSIGNOR:UNITED LABORATORIES INTERNATIONAL, LLC;REEL/FRAME:070491/0243 Owner name: TRISTAR GLOBAL ENERGY SOLUTIONS, INC., TEXAS Effective Date: Nov 29, 2023
Sep 20, 2021	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 4TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2551); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY year of fee payment: 4
Mar 20, 2018	I	Issuance
Feb 28, 2018	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Mar 08, 2017	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:FROST, JACK G.;MATZA, STEPHEN D.;SMITH, MARTHA T.;SIGNING DATES FROM 20120508 TO 20120514;REEL/FRAME:041502/0910 Owner name: UNITED LABORATORIES INTERNATIONAL, LLC, TEXAS
Jun 18, 2015	P	Published
Feb 24, 2015	F	Filing
Feb 24, 2011	PD	Priority Date