Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Seamless Technologies › John C. Knight
JK

John C. Knight — 23 Patents

STSeamless Technologies: 8 patents #2 of 4Top 50%
TUThe Upjohn: 7 patents #52 of 528Top 10%
MIMayer Industries: 3 patents #3 of 7Top 45%
ALAlizyme Therapeutics Limited: 1 patents #7 of 16Top 45%
AAArizona Board Of Regents, A Body Corporate Of The State Of Arizona: 1 patents #1 of 22Top 5%
TRThe Arizona Board Of Regents: 1 patents #129 of 428Top 35%
Kalamazoo, MI: #57 of 1,283 inventorsTop 5%
Michigan: #3,302 of 86,293 inventorsTop 4%
Overall (All Time): #178,160 of 4,157,543Top 5%
23 Patents All Time
John C. Knight has been granted 23 US patents while listed as an inventor at Seamless Technologies. The first was granted in 1981 and the most recent in April 2012. John C. Knight ranks #178,160 of 4,157,543 US inventors in our database (top 4.3%). Patent records list John C. Knight in Kalamazoo, MI, US.

Patents per Year

Patents granted per year, 1981 to 2012Bar chart with a peak of 5 patents in 2009.peak 51981: 1 patents19811982: 1 patents1983: 2 patents19831984: 4 patents1995: 2 patents19952000: 1 patents2002: 2 patents20022007: 1 patents2008: 1 patents20082009: 5 patents2010: 1 patents20102011: 1 patents2012: 1 patents2012

Issued Patents All Time

Showing 1–23 of 23 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8156767 Forming a tubular knit fabric for a paint roller cover Daniel L. Sinykin 2012-04-17
7908889 Forming a tubular knit fabric for a paint roller cover Daniel L. Sinykin 2011-03-22
7748241 Tubular cut pile knit fabric for paint roller covers Daniel L. Sinykin 2010-07-06
7634921 Knitting a tubular fabric for a paint roller cover Daniel L. Sinykin 2009-12-22
7596972 Tubular knit fabric having alternating courses of sliver fiber pile and cut-pile for paint roller covers Daniel L. Sinykin 2009-10-06
7552602 Forming a tubular knit fabric for a paint roller cover Daniel L. Sinykin 2009-06-30
7503191 Tubular sliver knit fabric for paint roller covers Daniel L. Sinykin 2009-03-17
7503190 Forming a tubular knit fabric for a paint roller cover Daniel L. Sinykin 2009-03-17
7317020 Isolation and structure of Cribrostatin 6 George R. Pettit 2008-01-08
7189852 Synthesis Richard Michael John Palmer, Nicholas Meyers 2007-03-13
6437128 Cribrostatins 3-5 George R. Pettit 2002-08-20
6359146 Process for the production of R-(+)-6-carboxamido-3-N-methylamino-1,2,3,4-tetrahydrocarbazole Ian Brackenridge, Caroline McGee, Steven McIntyre, David Hartley 2002-03-19 $67,000
6016670 Circular knitting machine having a constant takedown assembly Michael K. Kuhrau, Donald Charles Fosselman 2000-01-25
5460016 Method and apparatus for forming reverse loop sliver knit fabric Michael K. Kuhrau 1995-10-24
5431029 Method and apparatus for forming reverse loop sliver knit fabric Michael K. Kuhrau 1995-07-11
4443541 Process for preparing an indenedione and a mycobacterium culture therefor Merle G. Wovcha 1984-04-17 $1,568,000
4431591 24-Nor-1,4-choladiene-3,22-dione Merle G. Wovcha 1984-02-14
4429041 Process of producing 9-hydroxy-3-oxo-4,17(20)-pregnadiene-20-carboxylic acid Merle G. Wovcha, Alfred B. Garcia 1984-01-31 $4,470,000
4425429 Composition of matter and process Merle G. Wovcha 1984-01-10 $4,713,000
4423146 Composition of matter and process Merle G. Wovcha 1983-12-27 $1,142,000
4405525 Composition of matter and process Merle G. Wovcha 1983-09-20 $3,229,000
4329432 Mycobacterium fortuitum strain Merle G. Wovcha 1982-05-11 $2,570,000
4304860 Process for the microbial transformation of steroids Merle G. Wovcha 1981-12-08 $1,223,000

Frequent Collaborators

Daniel L. Sinykin8 shared
Merle G. Wovcha8 shared
Michael K. Kuhrau3 shared
George R. Pettit2 shared
Steven McIntyre1 shared
Alfred B. Garcia1 shared

Nearby-Ranked Inventors

Ravigopal Vennelakanti23
Amit Kaistha23
Stéphane BOUTINON23
Feras Hantash23
Philip Verhaelen23
Florian Paul Christian Binder23
Jean-Luc Bouthemy23
Egbert Lenderink23
Tony J. Branham23