Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7362229 | Ensuring the performance of mandated inspections combined with the collection of ancillary data During an inspection discrete checkpoints provide data to a portable reader, enabling a record to be generated identifying each checkpoint visited during an inspection. At least one checkpoint associated with the inspection will convey ancillary data to the portable... | 04/22/2008 |
| 7117121 | System and process to ensure performance of mandated inspections A method and apparatus to provide evidence that a person who is intended to make a required inspection was actually physically present at a predefined location associated with the inspection, so that the inspection could have been done, and if not, to provide an ind... | 10/03/2006 |
| 6804626 | System and process to ensure performance of mandated safety and maintenance inspections A handheld, portable device (20, 140, or 140′) is used to store data that indicate an operator was sufficiently close to each of a plurality of components during a safety inspection to actually inspect the components. The portable device includes a s... | 10/12/2004 |
| 6671646 | System and process to ensure performance of mandated safety and maintenance inspections A handheld, portable device (20) is used to store data that indicates an operator was sufficiently close to each of a plurality of components during a safety inspection to actually inspect the components. The portable device includes a sensor (46) that de... | 12/30/2003 |
