Electrode consumption monitoring system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Sep 6, 2016
Grant Date -
May 16, 2013
app pub date -
Nov 7, 2012
filing date -
Nov 7, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method and system automatically determines when an electrode add event occurs in an electric arc furnace having a plurality of electrode columns, each carried by an electrode positioning system. Data is received correlating to the harmonic distortion of the electrical current output to the plurality of electrode columns. Data is also received correlating to control pressures in the electrode positioning systems. Steady state control pressure data is captured when the harmonic distortion data indicates a steady state condition. An electrode add event is thereafter determined when a pressure spike is identified in the steady state control pressure data.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- GRAFTECH INTERNATIONAL HOLDINGS INC.
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Ingersoll,, III Wyllys King | Montreat, US | 3 | 26 |
# of filed Patents : 3 Total Citations : 26 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 2 Citation Count
- H05B Class
- 15.36 % this patent is cited more than
- 9 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 6, 2028 |
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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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May 21, 2021 | 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 27, 2018 | I | Issuance | |
Feb 07, 2018 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Mar 16, 2017 | P | Published | |
Sep 13, 2016 | F | Filing | |
Sep 10, 2016 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LIN, CHIA-CHING;REEL/FRAME:039822/0395 Owner name: ASUSTEK COMPUTER INC., TAIWAN Effective Date: Sep 10, 2016 |
Sep 16, 2015 | PD | Priority Date |

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