Utility, Design, and Plant.
99,220, including utility patents, plant patents, design patents, and reissues.
The USPTO granted a total of 247,727 patents from 1 January 2011 to 31 December 2011, including Reissue Patents, Plant Patents, Design Patents, and Utility Patents.
Intellectual Ventures is a 12 year old company that specializes in invention capital. They purchase patents in a diverse variety of fields including semiconductor, wireless, ecommerce, energy, software, biomedical, hardware and networking, among many others.
The US Patent Office issued 99,200 total patents from 1 January 1990 to 31 December 1990, including 9 reissue patents, 6 plant patents, 194 design patents, and 98,991 utility patents.
43 patents
Charles Kettering had 104 patents.
The website Free Patents Online provides descriptions of patents, with downloadable PDFs of their schematics. Alternatively, the website Patents provides text descriptions but no images.
As of 2010, General Electric (GE) has 1,222 patents. Aside from this, they have filed 37, 268 patents in the US.
What Companies hold MEMS patents
As with other property rights, patents can be sold or licensed
Spyderco has 54 patents and 36 trademarks.
No; Twitter notably has not filed for any patents.