1. Enichem Synthesis S.p.a (26 from 104 patents)

2. Anic S.p.a. (12 from 109 patents)

3. Great Lakes Chemical (europe) Gmbh (9 from 17 patents)

4. Enichem Sintesi S.p.a. (4 from 36 patents)

5. Great Lakes Chemical Italia S.r.l. (4 from 10 patents)

6. Snamprogetti S.p.a. (3 from 334 patents)

7. Agip Petroli S.p.a. (2 from 59 patents)

8. Enichimica Secondaria, S.p.a. (2 from 8 patents)

9. Other (1 from 832,718 patents)

10. Consiglio Nazionale Delle Ricerche (1 from 312 patents)

11. Eniricherche S.p.a. (1 from 8 patents)

12. Brichima, S.p.a. (1 from 7 patents)

13. Enicham Synthesis (1 from 1 patent)

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