Catalytic devulcanization of rubber
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Sep 16, 2008
Grant Date -
Jun 1, 2006
app pub date -
Nov 29, 2004
filing date -
Nov 29, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates generally to the delulcanization of rubber. More specifically, the present invention relates to a process for the hydro-devulcanization of vulcanized rubber utilizing a rubber swelling solvent, a source of reactive hyrogen and elevated temperature and, optimally, also uses a dispersed molecular-scale hydrogenation catalyst that is introduced into the vulcanized rubber in a catalytically inert form that is soluable in the rubber swelling solvent.
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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ALBERTA INNOVATES - TECHNOLOGY FUTURES | EDMONTON ALBERTA T6N 1E4 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Huang, Haibo | Edmonton, CA | 29 | 120 |
# of filed Patents : 29 Total Citations : 120 | |||
Lott, Roger Kai | Edmonton, CA | 4 | 33 |
# of filed Patents : 4 Total Citations : 33 | |||
McFarlane, Richard Anthony | Edmonton, CA | 4 | 68 |
# of filed Patents : 4 Total Citations : 68 |
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Patent Citation Ranking
- 13 Citation Count
- C08J Class
- 56.73 % this patent is cited more than
- 17 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

Legal Events
Date | Code | Event | Description |
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Jan 12, 2017 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAT HOLDER NO LONGER CLAIMS SMALL ENTITY STATUS, ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: STOL); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Aug 11, 2015 | I | Issuance | |
Jul 01, 2014 | F | Filing | |
Jul 09, 2012 | PD | Priority Date |

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