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

David C. Danielson — 28 Patents

ATAT&T: 17 patents #998 of 18,772Top 6%
MSM&R Marking Systems: 3 patents #8 of 29Top 30%
STS-B Power Tool: 3 patents #20 of 115Top 20%
IBM: 2 patents #32,909 of 70,183Top 50%
DADiscovision Associates: 2 patents #57 of 136Top 45%
American Telephone And Telegraph: 1 patents #132 of 699Top 20%
Rowayton, CT: #1 of 53 inventorsTop 2%
Connecticut: #1,250 of 34,797 inventorsTop 4%
Overall (All Time): #134,628 of 4,157,543Top 4%
28 Patents All Time
David C. Danielson has been granted 28 US patents while listed as an inventor at AT&T. The first was granted in 1980 and the most recent in February 2003. David C. Danielson ranks #134,628 of 4,157,543 US inventors in our database (top 3.2%). Patent records list David C. Danielson in Rowayton, CT, US.

Patents per Year

Patents granted per year, 1980 to 2003Bar chart with a peak of 4 patents in 1986.peak 41980: 1 patents19801981: 1 patents1982: 2 patents19821984: 1 patents1986: 4 patents19861987: 1 patents1989: 2 patents19891990: 1 patents1991: 4 patents19911992: 1 patents1994: 2 patents19941995: 4 patents1996: 1 patents19962002: 1 patents2003: 2 patents2003

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #TitleCo-InventorsDate
D469671 Cordless electric rotary hand tool Edward T. Prell, Allen M. Oles, Frank Sterpka 2003-02-04
D468180 Electric powered rotary saw tool Robert H. Bruno, Walter Bernardi, Michael Landt 2003-01-07
D458947 Table saw Kenneth N. Svetlik 2002-06-18
D365824 Cradle for a telephone handset Sonia M. Estevez-Alcolado, Michael L. Moroze, Daniel J. O'Donnell, Dhirendra Patel, Robert T. Saizan +2 more 1996-01-02
D364621 Telephone stand John E. Clarke, Bernard A. DeSiena, Sonia M. Estevez-Alcolado, James R. Graham, Michael L. Moroze +6 more 1995-11-28
D359064 Handle for a pre-inked mount Steven J. Sculler, Alexander Wall, James M. Ryan, Tor G. Bonner 1995-06-06
D355187 Telephone answering machine Anthony D. Franks 1995-02-07
D355186 Telephone answering machine Anthony D. Franks 1995-02-07
D353394 Dater hand stamp Walt Stefanski, James M. Ryan, David A. Reid 1994-12-13
D352521 Pre-inked mount Steven J. Sculler, Alexander Wall, James M. Ryan, Tor G. Bonner 1994-11-15
D323657 Telephone station having a touch-screen display Michael Grisham, James Joseph Hartmann, David Stowers 1992-02-04
D320985 Integrated answering machine David Dubbs, Daniel Harden, Raymond Motluck, Michael P. Zambelli 1991-10-22
D319439 Adjunct answering machine David Dubbs, Daniel Harden, Raymond Motluck, Michael P. Zambelli 1991-08-27
D318051 Telephone stand John N. McGarvey, Alvin R. Tilley 1991-07-09
D315343 Facsimile transceiver Arlan K. Andrews, Sr., John N. McGarvey 1991-03-12
D313233 Telephone answering set Arlan K. Andrews, Sr., John N. McGarvey, Alvin R. Tilley 1990-12-25
D304587 Telephone dialer adjunct James Joseph Hartmann, John N. McGarvey, Alvin R. Tilley, John M. Wuerz 1989-11-14
D303114 Telephone set Norman K. Hart, Lynnet Koh, John N. McGarvey, Eugene A. Mills 1989-08-29
D289155 Telephone answering device Richard Brooks, Jerome M. Gotway, John N. McGarvey, Alvin R. Tilley 1987-04-07
D287494 Telephone stand John N. McGarvey 1986-12-30
D286285 Telephone stand John N. McGarvey 1986-10-21
D285198 Telephone base Donald M. Genaro, John N. McGarvey 1986-08-19
D285073 Telephone handset Donald M. Genaro, John N. McGarvey 1986-08-12
D275006 Telephone handset Donald M. Genaro, John N. McGarvey 1984-08-07
D267151 Typewriter Gordon P. Bruce, Robert E. Griffith, Allen D. Hawthorne, Jeffrey L. Quedenfeld, Paul F. Siegel 1982-12-07