Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9798889 | Spreadsheet shared region and cell permissions | Leonard Karpel, Brian Sean Morris, Sayan Chakraborty | 2017-10-24 |
| 9626728 | Social network system with social objects | Sayan Chakraborty, Jeffrey Olkin, Daniel G. Rabe, Lenny Karpel | 2017-04-18 |