Catalyst containing novel transition metal compound for polymerization of olefins
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Mar 5, 2002
Issued Date -
N/A
app pub date -
Oct 9, 2000
filing date -
Jun 30, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is a novel transition metal composition of a metaracycle structure represented by the formula ##STR1## wherein M.sup.1 is an element of Group IVB in the Periodic Table, M.sup.2 is an element of Group IIIA in the Periodic Table, R.sup.1 and R.sup.2 each are for instance a cyclopentadienyl group, R.sup.3 and R.sup.4 each are for instance a hydrocarbon group, R5 and R6 each are a hydrogen atom and R7 and R8 indicate an indan ring formed by bonding to each other.
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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JAPAN POLYOLEFINS CO LTD | 26-5 TORANOMON 1-CHOME MINATO-KU TOKYO |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Sano, Akira | Kawasaki, JP | 120 | 683 |
# of filed Patents : 120 Total Citations : 683 | |||
Seki, Takashi | Kawasaki, JP | 89 | 1419 |
# of filed Patents : 89 Total Citations : 1419 | |||
Shimizu, Hiroyuki | Kawasaki, JP | 162 | 1480 |
# of filed Patents : 162 Total Citations : 1480 |
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Patent Citation Ranking
- 25 Citation Count
- C07F Class
- 92.01 % this patent is cited more than
- 23 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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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

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Apr 08, 2019 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Apr 08, 2019 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Mar 03, 2019 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Mar 03, 2019 |
Oct 22, 2018 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Mar 03, 2015 | I | Issuance | |
Feb 11, 2015 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Mar 29, 2014 | F | Filing | |
Mar 29, 2014 | PD | Priority Date | |
Mar 24, 2014 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MORAD, FRED I.;CAMP, WILLIAM P., JR.;REEL/FRAME:032555/0943 Owner name: WORLDWIDE INTEGRATED RESOURCES, INC., CALIFORNIA Effective Date: Mar 24, 2014 |

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