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

Thomas T. Howarth — 14 Patents

BPBeecham Group Plc: 8 patents #41 of 271Top 20%
SPSmithkline Beeacham P.L.C.: 4 patents #106 of 690Top 20%
Pfizer: 2 patents #2,085 of 5,153Top 45%
Felpham, GB: #1 of 12 inventorsTop 9%
Overall (All Time): #332,869 of 4,157,543Top 9%
14 Patents All Time
Thomas T. Howarth has been granted 14 US patents while listed as an inventor at Beecham Group Plc. The first was granted in 1985 and the most recent in April 2001. Thomas T. Howarth ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Thomas T. Howarth in Felpham, GB.

Patents per Year

Patents granted per year, 1985 to 2001Bar chart with a peak of 7 patents in 1985.peak 71985: 7 patents19851986: 1 patents19861987: 2 patents19872000: 3 patents20002001: 1 patents2001

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6218380 Pharmaceutical compositions Martin Cole, Christopher Reading 2001-04-17
6051703 Purified clavulanic acid and salts thereof Martin Cole, Christopher Reading 2000-04-18 $13,752,000
6048977 Clavulanic acid and salts thereof Martin Cole, Christopher Reading 2000-04-11 $24,112,000
6031093 Solid salts of clavulanic acid Martin Cole, Christopher Reading 2000-02-29 $19,225,000
4684641 7-hydroxyaminocephalosporin antibiotics Colin W. Greengrass, David W. T. Hoople 1987-08-04 $27,358,000
4684642 7-Hydroxyaminocephalosporin antibiotics Colin W. Greengrass, David W. T. Hoople 1987-08-04 $27,358,000
4609495 Clavulanic acid ethers as antibacterial agents Roger J. Ponsford 1986-09-02 $14,000
4560552 Antibiotics Martin Cole, Christopher Reading 1985-12-24 $10,000
4556559 Antibiotics Martin Cole, Christopher Reading 1985-12-03 $25,000
4548815 Antibacterial agents Roger J. Ponsford 1985-10-22 $11,000
4529720 Antibiotic from Streptomyces clavulicerus Martin Cole, Christopher Reading 1985-07-16 $21,000
4526783 Antibiotic from S. clavuligerus Martin Cole, Christopher Reading 1985-07-02 $22,000
4525353 Antibiotics Martin Cole, Christopher Reading 1985-06-25 $10,000
4525352 Antibiotics Martin Cole, Christopher Reading 1985-06-25 $10,000