RH

Robert Howitt

CC Curtis Manufacturing Company: 13 patents #4 of 14Top 30%
FR Frem: 6 patents #1 of 1Top 100%
HM Hyde Manufacturing: 4 patents #2 of 20Top 10%
MK M. Kamenstein: 3 patents #13 of 23Top 60%
UN Unknown: 3 patents #7,366 of 83,584Top 9%
📍 Leominster, MA: #4 of 286 inventorsTop 2%
🗺 Massachusetts: #3,078 of 88,656 inventorsTop 4%
Overall (All Time): #126,100 of 4,157,543Top 4%
30
Patents All Time

Issued Patents All Time

Showing 1–25 of 30 patents

Patent #TitleCo-InventorsDate
6966534 Wire system for hanging picture frames Peter Kamenstein, Joseph Opramolla 2005-11-22
6572067 Adjustable picture hanging hook Peter Kamenstein, Joseph Opramolla 2003-06-03
6527244 Adjustable picture hanging hook Peter Kamenstein, Joseph Opramolla 2003-03-04
D426117 Easel spice rack 2000-06-06
D424383 Easel spice rack Joseph Opramolla 2000-05-09
D388278 Expandable trivet 1997-12-30
5325278 Compact combined light and magnifier apparatus for a hand held computer with video screen Angelo Tortola 1994-06-28
5325280 Light apparatus for illuminating a compact computer video screen Angelo Tortola 1994-06-28
D346319 Razor blade scraper Leon E. Lavallee, Paul D. Cotnoir, R. Kurt Heinzmann, Andre G. Beaupre 1994-04-26
D344825 Tool handle Donald P. Cummings, David H. Mallalieu 1994-03-01
D342063 Combined antiglare monitor filter and holder Edward L. Hames 1993-12-07
D341855 Portable, battery operated light magnifier apparatus for computer video game Angelo Tortola 1993-11-30
5217295 Light apparatus and method for illuminating a compact computer video screen Angelo Tortola 1993-06-08
D331397 Anti-glare monitor filter holder Edward L. Hames 1992-12-01
5165779 Compact combined light and magnifier apparatus for a hand-held computer with video screen and method Angelo Tortola 1992-11-24
5130907 Light apparatus for use with a compact computer video screen Angelo Tortola 1992-07-14
5127524 Storage bin 1992-07-07
D326945 Storage bin 1992-06-09
5117339 Compact combined light and magnifier apparatus for a hand held computer with video screen Angelo Tortola 1992-05-26
5091832 Light apparatus for use with a compact computer video screen Angelo Tortola 1992-02-25
5062609 Combined keyboard storage, monitor support and document storage shelf apparatus Edward L. Hames 1991-11-05
D319379 Tool handle Donald P. Cummings, David H. Mallalieu 1991-08-27
5027961 Stackable shelf document storage apparatus 1991-07-02
D316454 Battery operated light for a handheld computer game machine screen Angelo Tortola 1991-04-23
4967323 Adjustable apparel-held flashlight Melissa C. Johnson 1990-10-30