Donald E. Cullen has been granted 13 US patents while listed as an inventor at RTX (Raytheon) . The first was granted in 1980 and the most recent in February 1994. Donald E. Cullen ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list Donald E. Cullen in Manchester, CT, US.
Patents per Year Patents granted per year, 1980 to 1994 Bar chart with a peak of 3 patents in 1992. peak 3 1980: 1 patents 1980 1982: 2 patents 1982 1983: 1 patents 1983 1984: 2 patents 1984 1987: 1 patents 1987 1991: 1 patents 1991 1992: 3 patents 1992 1993: 1 patents 1993 1994: 1 patents 1994
Issued Patents All Time
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Showing 1–13 of 13 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
5283444 Increased well depth hact using a strained layer superlattice Robert N. Sacks , Thomas W. Grudkowski , William J. Tanski 1994-02-01
$8,306,000
5262659 Nyquist frequency bandwidth hact memory Thomas W. Grudkowski 1993-11-16
$5,928,000
5159299 HACT electrode configuration Sears Merritt , William J. Tanski , Emilio J. Branciforte 1992-10-27
$3,954,000
5128579 Act electrode configuration for linear readout Roger D. Carroll , Sears Merritt , Emilio J. Branciforte , William J. Tanski 1992-07-07
$3,248,000
5128734 Surface channel hact Sears Merritt , William J. Tanski , Emilio J. Branciforte , Robert N. Sacks , Roger D. Carroll 1992-07-07
$3,248,000
4990814 Separated substrate acoustic charge transport device William J. Tanski 1991-02-05
$9,846,000
4676104 Surface skimming bulk acoustic wave accelerometer — 1987-06-30
$10,127,000
4484098 Environmentally stable lithium niobate acoustic wave devices Thomas W. Grudkowski , Gerald Meltz 1984-11-20
$2,642,000
4454440 Surface acoustic wave (SAW) pressure sensor structure — 1984-06-12
$2,996,000
4422055 Strain relief technique for surface acoustic wave devices Gary K. Montress , Meyer Gilden , Robert A. Wagner 1983-12-20
$4,574,000
4346597 Dual range, cantilevered mass accelerometer — 1982-08-31
$3,382,000
4333342 Fluid damped saw accelerometer Meyer Gilden , Thomas W. Grudkowski 1982-06-08
$2,017,000
4213104 Vacuum encapsulation for surface acoustic wave (SAW) devices Robert A. Wagner 1980-07-15
$2,582,000
