Did You Know...
...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!
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6213645 | Flexible package with sealed edges and easy to open mouth A package fabricated from a flexible sheet material capable of being sealed for closing off the interior of the package from ambient atmosphere is disclosed. The package has two or more side walls and a like number of side seams. The package has an open u... | 04/10/2001 |
| 5035517 | Reclosable shipping sack A reclosable sack having a mouth from which contents may be discharged, including a primary non-reclosable stitched fastener across and closing the mouth. The stitched fastener includes a removable chain stitch and tear strip for facilitating manual openi... | 07/30/1991 |
| 4691370 | Reclosable bulk material bag with slide fastener A bulk material bag includes an inner bag united with a cover bag. One tape of a closed slide fastener overlaps the interior of an inner bag rear top extension and is secured thereto. The top extension, together with the attached closed slide fastener and... | 09/01/1987 |
