Extrusion process for proppant production
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jan 9, 2018
Grant Date -
Mar 24, 2016
app pub date -
Nov 24, 2015
filing date -
Jan 25, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An extrusion method and apparatus are described for producing ceramics, glass, glass-ceramics, or composites suitable for use as proppants. The method includes forming one or more green body materials, extruding the green body materials to form a green body extrudate, separating and shaping the green body extrudate into individual green bodies, and sintering the green bodies to form proppants. The apparatus includes a means for forming an intimate mixture of green body materials, means to produce a green body extrudate, means for separating and shaping the green body extrudate into individual green bodies, and means to sinter the green green bodies to form proppants.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
HALLIBURTON ENERGY SERVICES INC | 3000 N SAM HOUSTON PARKWAY E HOUSTON TX 77032-3219 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Chatterjee, Dilip K | Houston, US | 161 | 3427 |
# of filed Patents : 161 Total Citations : 3427 | |||
Coker, Christopher E | Houston, US | 37 | 1734 |
# of filed Patents : 37 Total Citations : 1734 | |||
Skala, Robert D | Houston, US | 14 | 905 |
# of filed Patents : 14 Total Citations : 905 | |||
Wu, Shanghua | Houston, US | 25 | 552 |
# of filed Patents : 25 Total Citations : 552 | |||
Xie, Yuming | Houston, US | 84 | 1257 |
# of filed Patents : 84 Total Citations : 1257 |
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Patent Citation Ranking
- 1 Citation Count
- C09K Class
- 32.37 % this patent is cited more than
- 7 Age
Forward Cite Landscape
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 9, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 9, 2029 |
Fee | Large entity fee | small entity fee | micro entity fee |
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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 18, 2022 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 8 |
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Feb 17, 2015 | CC | CERTIFICATE OF CORRECTION | |
Sep 23, 2014 | I | Issuance | |
Sep 03, 2014 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Apr 25, 2013 | P | Published | |
Oct 24, 2011 | F | Filing | |
Oct 24, 2011 | PD | Priority Date | |
Oct 20, 2011 | AS | ASSIGNMENT | free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE STATE OF THE ASSIGNEE FROM ILLINOIS TO INDIANA PREVIOUSLY RECORDED ON REEL 027106 FRAME 0639. ASSIGNOR(S) HEREBY CONFIRMS THE STATE OF THE ASSIGNEE IS INDIANA;ASSIGNOR:MADRID, ALLEN L.;REEL/FRAME:027581/0485 Owner name: SCHLAGE LOCK COMPANY, INDIANA Effective Date: Oct 20, 2011 |
Oct 20, 2011 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MADRID, ALLEN L.;REEL/FRAME:027106/0639 Owner name: SCHLAGE LOCK COMPANY, ILLINOIS Effective Date: Oct 20, 2011 |

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