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Calgary, Canada

Rupert Edward Von Haken Spence

USPTO Granted Patents = 10

Average Co-Inventor Count = 5.5

ph-index = 7

Forward Citations = 112(Granted Patents)

Company Filing History:

Nova Chemicals (international) S.a.

Years Active: 2000-2003

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10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6649558 - Bis-phosphinimine catalyst (2003-11-18),

2. 6440890 - Hydrocarbyl phosphinimine/cyclopentadienyl complexes of group IV metals and preparation thereof (2002-08-27),

3. 6420300 - Catalyst having a ketimide ligand (2002-07-16),

4. 6355744 - Cyclopentadienyl/phosphinimine catalyst with one and only one activatable ligand (2002-03-12),

5. 6239238 - Bis-phosphinimine catalyst (2001-05-29),

6. 6234950 - Nitrogen substituted phosphinimine ligand (2001-05-22),

7. 6221985 - Solution polymerization of ethylene (2001-04-24),

8. 6147172 - Phosphinimine/heteroatom catalyst component (2000-11-14),

9. 6114481 - Catalyst having a ketimide ligand (2000-09-05),

10. 6051667 - Olefin polymerization using a catalyst having a bridged (2000-04-18),

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