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

Walter Graham Guthrie — 5 Patents

KNKnoll: 2 patents #99 of 268Top 40%
Basf Se: 1 patents #8,065 of 13,826Top 60%
TPThe Boots Company Plc: 1 patents #48 of 152Top 35%
Columbia, VA: #4 of 15 inventorsTop 30%
Virginia: #6,255 of 34,511 inventorsTop 20%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Walter Graham Guthrie has been granted 5 US patents while listed as an inventor at Knoll. The first was granted in 1989 and the most recent in March 2005. Walter Graham Guthrie ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Walter Graham Guthrie in Columbia, VA, US.

Patents per Year

Patents granted per year, 1989 to 2005Bar chart with a peak of 1 patents in 1989.peak 11989: 1 patents19891997: 1 patents19971998: 1 patents19982001: 1 patents20012005: 1 patents2005

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6866869 Liquid antimicrobial compositions Mohammed Shoaib Qureshi, Lawrence Staniforth, Darren Hodgkinson, David Wilson Ashworth 2005-03-15 $297,000
6312687 Stabilized lactoperoxidase and glucose oxidase concentrate David Vincent Roper 2001-11-06
5807542 Chemical compositions for inhibiting nitrosation reaction in toiletries and cosmetics Brian Christopher Challis, David Vincent Roper, David Frank Trew 1998-09-15 $5,839,000
5607681 Anti-microbial compositions Edward Galley, Dene Clifford Godfrey, Darren Hodgkinson, Helen L. Linnington 1997-03-04
4820428 Antimicrobial compositions and methods John McLennan, Keith D. Brunt 1989-04-11