Divided electrochemical cell and low cost high purity hydride gas production process
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United States of America Patent
Stats
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Aug 22, 2017
Grant Date -
Dec 3, 2015
app pub date -
Aug 10, 2015
filing date -
Dec 20, 2007
priority date (Note) -
In Force
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Abstract
This invention is an apparatus and a method for continuously generating a hydride gas of M1 which is substantially free of oxygen in a divided electrochemical cell. An impermeable partition or a combination of an impermeable partition and a porous diaphragm can be used to divide the electrochemical cell. The divided electrochemical cell has an anode chamber and a cathode chamber, wherein the cathode chamber has a cathode comprising M1, the anode chamber has an anode comprising M2 and is capable of generating oxygen, an aqueous electrolyte solution comprising a hydroxide M3OH partially filling the divided electrochemical cell. Hydride gas generated in the cathode chamber and oxygen generated in the anode chamber are removed through independent outlets. M1 can be selenium, phosphorous, silicon, metal or metal alloy, M2 is metal or metal alloy suitable for anionic oxygen generation, and M3 is NH4 or an alkali or alkaline earth metal.
First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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VERSUM MATERIALS US LLC | 8555 SOUTH RIVER PARKWAY PATENT DEPT TEMPE AS 85284 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Hartz, Christopher L | Slatington, US | 5 | 8 |
# of filed Patents : 5 Total Citations : 8 | |||
Leenhouts, James Robert | Blandon, US | 4 | 10 |
# of filed Patents : 4 Total Citations : 10 | |||
Machado, Reinaldo Mario | Allentown, US | 27 | 257 |
# of filed Patents : 27 Total Citations : 257 | |||
Schulze, William F | Denver, US | 4 | 7 |
# of filed Patents : 4 Total Citations : 7 | |||
Tsirukis, Athanasios Georgios | Bethlehem, US | 4 | 10 |
# of filed Patents : 4 Total Citations : 10 |
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Maintenance Fees
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7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Feb 22, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 22, 2029 |
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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 10, 2017 | AS | ASSIGNMENT | free format text: SECURITY INTEREST;ASSIGNOR:LAKELAND INDUSTRIES, INC.;REEL/FRAME:042415/0975 Owner name: SUNTRUST BANK, GEORGIA Effective Date: May 10, 2017 free format text: RELEASE BY SECURED PARTY;ASSIGNOR:ALOSTAR BANK OF COMMERCIE;REEL/FRAME:042485/0631 Owner name: LAKELAND INDUSTRIES, INC., DELAWARE Effective Date: May 10, 2017 |
Jun 28, 2013 | AS� | SECURITY INTEREST | free format text: SECURITY AGREEMENT;ASSIGNORS:LAKELAND INDUSTRIES, INC.;LAKELAND PROTECTIVE WEAR INC.;REEL/FRAME:030746/0767 Owner name: ALOSTAR BANK OF COMMERCE, GEORGIA Effective Date: Jun 28, 2013 |
May 03, 2010 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Apr 02, 2010 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Apr 02, 2010 |
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Oct 19, 2005 | SULP | SURCHARGE FOR LATE PAYMENT | |
Oct 19, 2005 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Oct 19, 2005 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Apr 02, 2002 | I | Issuance | |
Oct 01, 1998 | F | Filing | |
Jan 25, 1995 | PD | Priority Date |

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