Inventor
Charles L. Bruzzone
Inventor
Woodbury, MN, US
Overview
Patents· 34 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus30%
H04NPictorial communication, e.g. television25%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them9%
B29CShaping or joining of plastics5%
B29DProducing particular articles from plastics or from substances in a plastic state4%
B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts4%
Y10TTechnical subjects covered by former us classification4%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form2%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients2%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2%
PatentTitleYear
10,906,212Actinic radiation device for speedy resin cure202110,520,744Adhesives inhibiting formation of artifacts in polymer based optical elements201910,287,413Thermoplastic polymer composite containing soft, ferromagnetic particulate material and methods of making thereof20198,654,444'Polarization converting color combiner'20148,542,441'High durability color combiner'20138,485,667'Optical element and colored light combiner using same'20138,100,535'Stress birefringence compensation in polarizing beamsplitters and systems using same'20127,731,366'Stress birefringence compensation in polarizing beamsplitters and systems using same'20107,717,564'Projection system including intrinsic polarizer'20107,686,453'High contrast liquid crystal display and projection system using same'20107,652,820'Reflective LCD projection system using wide-angle cartesian polarizing beam splitter and color separation and recombination prisms'20107,568,804'Highly efficient single panel and two panel projection engines'20097,542,194'Birefringence-compensated liquid crystal display and projection system using same'20097,391,569'Projection system including intrinsic polarizer'20087,357,511'Stress birefringence compensation in polarizing beamsplitters and systems using same'20087,329,006'Projection system having low astigmatism'20087,261,418'Projection apparatus'20077,237,899'Highly efficient single panel and two panel projection engines'20077,234,816'Polarizing beam splitter assembly adhesive'20077,145,719'Optical cores and projection systems containing the optical core'20067,023,602'Reflective LCD projection system using wide-angle Cartesian polarizing beam splitter and color separation and recombination prisms'20066,976,759'Compound polarization beam splitters'20056,926,410'Polarizing beam splitter'20056,786,604'Projection system having low astigmatism'20046,721,096'Polarizing beam splitter'20046,719,426'Compound polarization beam splitters'20046,672,721'Projection system having low astigmatism'20046,609,795'Polarizing beam splitter'20036,525,816'Method for measuring the absolute light throughput of reflective-mode displays in an optical system'20036,486,997'Reflective LCD projection system using wide-angle Cartesian polarizing beam splitter'20026,381,068'Reflective projection screen and projection system'20026,166,797'Diffusion barrier layers with microstructured spacing members for liquid crystal display panel substrates'20005,925,455'Electromagnetic-power-absorbing composite comprising a crystalline ferromagnetic layer and a dielectric layer, each having a specific thickness'19995,083,112'Multi-layer thin-film EAS marker'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992–2000Based in St. Paul, MN, US· patent location history
1999–2021Patents assigned to 3M INNOVATIVE PROPERTIES CO (32)· patent assignee history
1999–2021Based in Woodbury, MN, US· patent location history
2012–2014Patents assigned to BRUZZONE CHARLES L (4)· patent assignee history
2012Patents assigned to AASTUEN DAVID J W (1)· patent assignee history
2013–2014Patents assigned to OUDERKIRK ANDREW J (3)· patent assignee history
2013–2014Patents assigned to WILLETT STEPHEN J (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| 3M INNOVATIVE PROPERTIES CO | 32 | 1999–2021 |
| BRUZZONE CHARLES Lself | 4 | 2012–2014 |
| OUDERKIRK ANDREW J | 3 | 2013–2014 |
| WILLETT STEPHEN J | 2 | 2013–2014 |
| AASTUEN DAVID J W | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Woodbury, Minnesota, US | 32 | 1999–2021 |
| St. Paul, Minnesota, US | 2 | 1992–2000 |