Richard Larson — 8 Patents at Ips Group

Richard Larson has been granted 8 US patents while listed as an inventor at Ips Group. The first was granted in 1986 and the most recent in August 2022. Richard Larson ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Richard Larson in Victoria, MN, US.

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #	Title	Co-Inventors	Date
D960558	Pipe cleaning keychain	—	2022-08-16
9903489	Pneumatic pressure relief test plug	Steven R. Cole	2018-02-27
8256467	Plug with pressure release valve	Steven R. Cole	2012-09-04
8042576	Mechanical clean-out test plug	Stephen Peterson	2011-10-25
7597118	Pneumatic pressure relief test plug	Stephen Peterson	2009-10-06
7464727	Clean-out repair plug	Steven Shane Peterson	2008-12-16
6086132	Sun spot	David N. Caldwell	2000-07-11
4572228	Connector valve assembly for inflatable packer device	Dale K. Nelson, Allen D. Mathison	1986-02-25

Richard Larson — 8 Patents

Issued Patents All Time

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