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

Thomas M. Pfeifer — 21 Patents

Pitney Bowes: 21 patents #62 of 1,313Top 5%
Bridgeport, CT: #8 of 303 inventorsTop 3%
Connecticut: #1,867 of 34,797 inventorsTop 6%
Overall (All Time): #201,324 of 4,157,543Top 5%
21 Patents All Time
Thomas M. Pfeifer has been granted 21 US patents while listed as an inventor at Pitney Bowes. The first was granted in 1993 and the most recent in August 1998. Thomas M. Pfeifer ranks #201,324 of 4,157,543 US inventors in our database (top 4.8%). Patent records list Thomas M. Pfeifer in Bridgeport, CT, US.

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5794223 Method for control of length of imprint for a mailing machine Dennis M. Gallagher, John R. Nobile, William A. Ross, Richard P. Schoonmaker 1998-08-11 $26,270,000
5544579 Mailing machine including overrideable sheet length discriminating structure Dennis M. Gallagher, Richard P. Schoonmaker 1996-08-13 $11,477,000
5539287 Roll-tape knife control for a tape-cutting apparatus in a mailing machine Dennis M. Gallagher, John R. Nobile 1996-07-23 $6,060,000
5539852 Method for controlling speed in a tape feeding, cutting and ejection apparatus for a mailing machine Dennis M. Gallagher, Richard P. Schoonmaker 1996-07-23 $6,060,000
5526741 Machine including apparatus for accounting for malfunction conditions Dennis M. Gallagher, Richard P. Schoonmaker 1996-06-18 $32,694,000
5479586 Mailing machine including means for selectively changing the marginal distance from the leading edge of an envelope or tape for printing indicia thereon Dennis M. Gallagher, Richard P. Schoonmaker 1995-12-26 $33,115,000
5433537 Mailing machine with testing of sensors Dennis M. Gallagher, Richard P. Schoonmaker 1995-07-18 $14,923,000
5415089 Mailing machine including printing drum deceleration and constant velocity control system Alton B. Eckert, Dennis M. Gallagher, Richard P. Schoonmaker 1995-05-16 $5,595,000
5415484 Method and apparatus for cutting mailing machine roll tape Dennis M. Gallagher, John R. Nobile, William A. Ross, Richard P. Schoonmaker 1995-05-16 $5,595,000
5408927 Tax stamp machine Dennis M. Gallagher 1995-04-25 $14,956,000
5380109 Mailing machine including short sheet length detecting means Alton B. Eckert, Dennis M. Gallagher, Richard P. Schoonmaker 1995-01-10 $28,049,000
5373450 Mailing machine including improved tape dispensing means and control system therefor Dennis M. Gallagher, Richard P. Schoonmaker 1994-12-13 $8,237,000
5355068 Mailing machine including shutter bar control system Alton B. Eckert, Dennis M. Gallagher, Richard P. Schoonmaker 1994-10-11 $4,427,000
5337660 Mailing machine including printing speed calibrating means Alton B. Eckert, Dennis M. Gallagher, Richard P. Schoonmaker 1994-08-16 $5,110,000
5337248 Mailing machine including sheet feeding speed calibrating means Alton B. Eckert, Dennis M. Gallagher, Richard P. Schoonmaker 1994-08-09 $9,894,000
5331539 Mailing machine including multiple channel pulse width modulated signal circuit Richard P. Schoonmaker 1994-07-19 $5,814,000
5331576 Mailing machine including skewed sheet detection means Alton B. Eckert, Dennis M. Gallagher, John R. Nobile 1994-07-19 $5,814,000
5314566 Mailing machine including low speed sheet feeding and jam detection structure Dennis M. Gallagher, Richard P. Schoonmaker 1994-05-24 $16,936,000
5295060 Mailing machine including sheet feeding control means Alton B. Eckert, Dennis M. Gallagher, Richard P. Schoonmaker 1994-03-15 $16,997,000
5268836 Mailing machine including printing drum deceleration and coasting control system Alton B. Eckert, Dennis M. Gallagher, Richard P. Schoonmaker 1993-12-07 $32,542,000
5251554 Mailing machine including shutter bar moving means Alton B. Eckert, Arnold Fassman, John R. Nobile 1993-10-12 $14,405,000