Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DC

David Crawford — 8 Patents

GRGroupon: 4 patents #164 of 502Top 35%
Boulder, CO: #890 of 5,018 inventorsTop 20%
Colorado: #5,915 of 40,980 inventorsTop 15%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
David Crawford has been granted 8 US patents while listed as an inventor at Groupon. The first was granted in 1992 and the most recent in May 2022. David Crawford ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list David Crawford in Boulder, CO, US.

Patents per Year

Patents granted per year, 1992 to 2022Bar chart with a peak of 2 patents in 2020.peak 21992: 1 patents19921998: 1 patents19982002: 1 patents20022015: 1 patents20152017: 1 patents20172020: 2 patents20202022: 1 patents2022

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11321993 Dynamic awarding of prizes in chance-based contests Gregory J. Conklin, Alison Allgor, Naresh Dhiman, Jeffrey A. Holden, Shafiq Shariff 2022-05-03 $2,836,000
10621819 Dynamic awarding of prizes in chance-based contests Gregory J. Conklin, Alison Allgor, Naresh Dhiman, Jeffrey A. Holden, Shafiq Shariff 2020-04-14 $9,843,000
10577031 Truck bed extension assembly 2020-03-03
9846988 Dynamic awarding of prizes in chance-based contests Gregory J. Conklin, Alison Allgor, Naresh Dhiman, Jeffrey A. Holden, Shafiq Shariff 2017-12-19 $15,582,000
9142081 Dynamic awarding of prizes in chance-based contests Gregory J. Conklin, Alison Allgor, Naresh Dhiman, Jeffrey A. Holden, Shafiq Shariff 2015-09-22 $11,566,000
6364412 Hanging chair 2002-04-02
5851053 Hanging chair 1998-12-22
5079776 Glove for rock climbing 1992-01-14