U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!

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Examiner: Siegel, P. A.


Primary examiner statistics: 1 patents; average approval time: 204 days
Assistant examiner statistics: 3 patents; average approval time: 603 days

Patents as Primary Examiner

Patent No. Patent Title:
5136086 Preparation process of aliphatic isocyanate

Patents as Assistant Examiner

Patent No. Patent Title:
4092329 Process for the synthesis of certain 2-amino-5-cyanothiophenes
4070479 1-Tertiary-alkyl-3-(substituted thienyl)ureas and 1-tertiary...
4044025 Organotin miticidal and insecticidal compounds
 
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