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Saint Paul, MN, United States of America

Warren R Beck

USPTO Granted Patents = 13

Average Co-Inventor Count = 1.1

ph-index = 10

Forward Citations = 643(Granted Patents)

Location History:

Saint Paul, MN (US) (1978 - 1992)
Woodbury, MN (US) (1999 - 2011)

Company Filing History:

Minnesota Mining and Manufacturing Company

5 out of 832,843

Other

patents

Years Active: 1978-2011

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13 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7900474 - Hollow glass microspheres comprising selenium oxide and method of making thereof (2011-03-08),

2. 7506523 - Method of making hollow inorganic microspheres, and products made thereby (2009-03-24),

3. 5962095 - Stabilized fruit stones (1999-10-05),

4. 5087508 - Dew and frost resistant signs (1992-02-11),

5. 5037149 - Dog litter cleanup bag (1991-08-06),

6. 4900077 - Dog litter cleanup device (1990-02-13),

7. 4744831 - Hollow inorganic spheres and methods for making such spheres (1988-05-17),

8. 4725390 - Process for making ceramic spheroids (1988-02-16),

9. 4632876 - Ceramic spheroids having low density and high crush resistance (1986-12-30),

10. 4493875 - Proppant for well fractures and method of making same (1985-01-15),

11. 4393901 - Low-permeability hollow spheres and pipe filled with the spheres for (1983-07-19),

12. 4144372 - Low-density space-filling sheet material (1979-03-13),

13. 4111713 - Hollow spheres (1978-09-05),

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