Liquid product for stainless-steel corrosion remediation
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 18, 2021
Grant Date -
Sep 17, 2020
app pub date -
Mar 13, 2019
filing date -
Mar 13, 2019
priority date (Note) -
In Force
status (Latency Note)
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Importance

US Family Size
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Non-US Coverage
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Abstract
A concentrate aqueous composition for removing Type I and Type III rouge from various stainless-steel items. The liquid composition comprises oxalic acid, a phosphonic acid, and various amines. The use of an amine has been found to provide synergistic results in removal of the noted types of corrosion from various stainless-steel items that include medical instruments, machines, equipment, pipes, tools, mixing and storage vessels, and the like.
First Claim
all claims..Other Claims data not available
Family
- No Family data available.
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
AMERICAN STERILIZER COMPANY | 5960 HEISLEY ROAD MENTOR OH 44060 |
International Classification(s)

- 2019 Application Filing Year
- C11D Class
- 807 Applications Filed
- 477 Patents Issued To-Date
- 59.11 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Fix, Kathleen Ann | Willoughby, US | 2 | 12 |
# of filed Patents : 2 Total Citations : 12 | |||
Kaiser, Nancy-Hope Elizabeth | Collinsville, US | 9 | 103 |
# of filed Patents : 9 Total Citations : 103 | |||
Smith, Thomas William | St. Louis, US | 11 | 122 |
# of filed Patents : 11 Total Citations : 122 |
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Patent Citation Ranking
- 0 Citation Count
- C11D Class
- 0 % this patent is cited more than
- 4 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Nov 18, 2024 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Nov 18, 2028 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 18, 2032 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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 |
Full Text

Legal Events
Date | Code | Event | Description |
---|---|---|---|
Nov 18, 2024 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Feb 28, 2023 | CC | CERTIFICATE OF CORRECTION | |
Oct 26, 2021 | CC | CERTIFICATE OF CORRECTION | |
May 18, 2021 | P | Publication | |
Apr 28, 2021 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Apr 07, 2021 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: PUBLICATIONS -- ISSUE FEE PAYMENT VERIFIED |
Apr 06, 2021 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: PUBLICATIONS -- ISSUE FEE PAYMENT RECEIVED |
Mar 09, 2021 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: NOTICE OF ALLOWANCE MAILED -- APPLICATION RECEIVED IN OFFICE OF PUBLICATIONS |
Jan 16, 2021 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER |
Oct 22, 2020 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: NON FINAL ACTION MAILED |
Sep 17, 2020 | P | Published | |
Mar 13, 2019 | F | Filing | |
Mar 13, 2019 | FEPP | FEE PAYMENT PROCEDURE | free format text: ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: BIG.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Mar 13, 2019 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SMITH, THOMAS WILLIAM;KAISER, NANCY-HOPE ELIZABETH;FIX, KATHLEEN ANN;SIGNING DATES FROM 20190312 TO 20190313;REEL/FRAME:048587/0046 Owner name: AMERICAN STERILIZER COMPANY, OHIO |

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