Superstar singer Michael Jackson co-patented a "Method and means for creating anti-gravity illusion" in 1993.
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| Number | Title | Issue Date |
| 7508951 | Hearing aid with pull cord Hearing aid comprising two parts that can be joined together/taken apart. One part is provided with the electronics and preferably consists of a universal part. The other part comprises an accommodation for the battery and is matched to the wearer's auditory canal. ... | 03/24/2009 |