Polyethers and polysiloxane copolymers manufactured with double metal cyanide catalysts
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jan 5, 1999
Grant Date -
N/A
app pub date -
Jul 29, 1997
filing date -
Jul 30, 1996
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention discloses a new class of silicone surfactants and their use for the preparation of flexible urethane foam. The surfactants incorporate high molecular weight polyethers prepared with narrower molecular weight distributions than conventional polyethers. These polyethers are prepared using a double metal cyanide (DMC) catalyst. These surfactants are better foam stabilizers than the analogous surfactants prepared from conventional polyethers.
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 | |
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BOKF NA AS SUCCESSOR COLLATERAL AGENT | ONE WILLIAMS CENTER 10NW TULSA OK 74103 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Budnik, Richard | Mount Kisco, NY | 2 | 25 |
# of filed Patents : 2 Total Citations : 25 | |||
Jorgenson, Michael W | Quincy, IL | 10 | 82 |
# of filed Patents : 10 Total Citations : 82 | |||
Miller, Glenn A | Charleston, WV | 50 | 311 |
# of filed Patents : 50 Total Citations : 311 |
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Patent Citation Ranking
- 14 Citation Count
- C08G Class
- 61.41 % this patent is cited more than
- 26 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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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 |
Full Text

Legal Events
Date | Code | Event | Description |
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Sep 13, 2006 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Aug 11, 2006 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Aug 11, 2006 |
Aug 11, 2006 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Mar 01, 2006 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Mar 05, 2002 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Feb 08, 2002 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Dec 01, 2001 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
May 25, 1999 | CC | CERTIFICATE OF CORRECTION | |
Aug 11, 1998 | I | Issuance | |
Sep 07, 1994 | F | Filing | |
Sep 07, 1994 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:REYES-GAVILAN, JOSE L.;ECKARD, ALAN D.;FLAK, G. THOMAS;AND OTHERS;REEL/FRAME:007554/0391;SIGNING DATES FROM 19940728 TO 19940901 Owner name: WITCO CORPORATION, CONNECTICUT |

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