Lawrence F. Irwin — 32 Patents at Augerscope

Lawrence F. Irwin has been granted 32 US patents while listed as an inventor at Augerscope. The first was granted in 1981 and the most recent in July 2010. Lawrence F. Irwin ranks #110,428 of 4,157,543 US inventors in our database (top 2.7%). Patent records list Lawrence F. Irwin in Beverly Hills, CA, US.

Patents per Year

Issued Patents All Time

Showing 1–25 of 32 patents

Patent #	Title	Co-Inventors	Date
7761948	Waste line inspection and clean-out tool	—	2010-07-27
6142460	Method and apparatus for installing and removing a sink mounted garbage disposer	—	2000-11-07
6135466	Transport dolly for lifting and transporting lavatory fixtures	—	2000-10-24
6076219	Waste line clean out apparatus	—	2000-06-20
5996159	Waste line inspection and clean out device with water jet head	—	1999-12-07
5933903	Waste line clean out device with water jet head	—	1999-08-10
5862561	Waste line inspection and clean out device with water jet head	—	1999-01-26
5497516	Drain sealing apparatus	—	1996-03-12
5414888	Grip handle chuck	—	1995-05-16
5265301	Drain cleaning apparatus	—	1993-11-30
5239708	Pneumatic waste line clean-out tool	—	1993-08-31
5193242	Wasteline cleanout apparatus	—	1993-03-16
5004119	Drain sealing apparatus	—	1991-04-02
4942873	Resuscitation device	Frank R. Irwin	1990-07-24
4870992	Backflow prevention device	Frank R. Irwin	1989-10-03
4816957	Ground line fault interrupter adapter unit	—	1989-03-28
D298071	Sewer cleanout apparatus	—	1988-10-11
4716613	Pipe cleaning machine	—	1988-01-05
4694634	Vacuum sealing device for insulated steam injection tubing	Paul T. Anderson, John C. Matthews, Charles E. Paugh	1987-09-22
4686732	Waste line cleanout apparatus	—	1987-08-18
4679378	Vacuum sealing device for insulated steam injection tubing	Paul T. Anderson, John C. Matthews, Charles E. Paugh	1987-07-14
4611360	Pipe cleaning machine	—	1986-09-16
4580306	Waste line cleanout apparatus	—	1986-04-08
4542543	Impact device	—	1985-09-24
4508468	Locking coupling	—	1985-04-02

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