Thin strip production process employing continuous casting and rolling
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
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Mar 18, 2025
Grant Date -
Aug 3, 2023
app pub date -
Sep 30, 2020
filing date -
Sep 30, 2020
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A process for thin strip production integrates continuous casting and rolling, with steps including continuous casting, rough rolling, induction heating, finish rolling, laminar cooling, high-speed shearing, and coiling. A key feature is the in-line heating between casting and rough rolling, where wide surfaces, narrow surfaces, and corners of the casting blank are heated simultaneously. This process improves rough rolling efficiency, enhances uniformity and thickness stability of thin strips, reduces out-of-tolerance rates, and minimizes rolling-induced cracks.
First Claim
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Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- CISDI ENGINEERING CO., LTD.; CISDI RESEARCH & DEVELOPMENT CO., LTD
International Classification(s)

- 2020 Application Filing Year
- B22D Class
- 348 Applications Filed
- 229 Patents Issued To-Date
- 65.81 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Deng, Bitao | Chongqing, CN | 1 | 0 |
# of filed Patents : 1 Total Citations : 0 | |||
Han, Zhiwei | Chongqing, CN | 6 | 0 |
# of filed Patents : 6 Total Citations : 0 | |||
Kong, Yiwen | Chongqing, CN | 1 | 0 |
# of filed Patents : 1 Total Citations : 0 | |||
Liu, Qiang | Chongqing, CN | 382 | 3076 |
# of filed Patents : 382 Total Citations : 3076 |
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Patent Citation Ranking
- 0 Citation Count
- B22D Class
- 0 % this patent is cited more than
- < 1 Age
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- No Forward Cites to Display

Maintenance Fees
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3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Sep 18, 2028 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Sep 18, 2032 |
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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 |
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Feb 14, 2023 | P | Publication | |
Jan 25, 2023 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
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Nov 30, 2021 | AS | ASSIGNMENT | free format text: SECURITY INTEREST;ASSIGNOR:THE SHYFT GROUP, INC.;REEL/FRAME:058254/0355 Owner name: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT, NORTH CAROLINA Effective Date: Nov 30, 2021 |
Oct 28, 2021 | P | Published | |
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Jun 01, 2020 | AS | ASSIGNMENT | free format text: CHANGE OF NAME;ASSIGNOR:SPARTAN MOTORS, INC.;REEL/FRAME:056275/0130 Owner name: THE SHYFT GROUP, INC., MICHIGAN Effective Date: Jun 01, 2020 free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MCDONALD, ERNEST M., II;NEWCOMER, JAMES M.;SMITH, MICHAEL ANDREW;AND OTHERS;SIGNING DATES FROM 20110420 TO 20110421;REEL/FRAME:056274/0962 Owner name: SPARTAN MOTORS, INC., MICHIGAN |

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