1. Engelhard Corporation (42 from 623 patents)

2. Basf Corporation (6 from 2,036 patents)

3. Basf Catalysts LLC (2 from 77 patents)

4. Other (1 from 832,843 patents)

5. Columbia University (1 from 2,489 patents)

6. Engelhard Minerals & Chemicals Corporation (1 from 155 patents)

7. Englehard Corporation (1 from 8 patents)

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